diff --git a/ch09-writing-your-own-methods/ask.rb b/ch09-writing-your-own-methods/ask.rb
index 01716eb35..36accc9a2 100644
--- a/ch09-writing-your-own-methods/ask.rb
+++ b/ch09-writing-your-own-methods/ask.rb
@@ -1,3 +1,30 @@
-def ask question
-  # your code here
-end
\ No newline at end of file
+def ask(question)
+  while true
+    puts question
+    reply = gets.chomp.downcase
+    if reply == "yes"
+      return true
+    elsif reply == "no"
+      return false
+    end
+    puts "Please answer 'yes' or 'no'"
+  end
+end
+
+ask "Do you like eating tacos?"
+
+
+=begin
+ask "Do you like eating burritos?"
+wets_bed = ask "Do you wet the bed?"
+ask "Do you like eating chimichangas?"
+ask "Do you like eating sopapillas?"
+puts "Just a few more questions..."
+ask "Do you like eating drinking horchata?"
+ask "Do you like eating flautas?"
+puts
+puts "DEBRIEFING:"
+puts "Thank you for"
+puts
+puts wets_bed
+=end
diff --git a/ch09-writing-your-own-methods/old_school_roman_numerals.rb b/ch09-writing-your-own-methods/old_school_roman_numerals.rb
index ca6589f2d..5b19c148b 100644
--- a/ch09-writing-your-own-methods/old_school_roman_numerals.rb
+++ b/ch09-writing-your-own-methods/old_school_roman_numerals.rb
@@ -1,3 +1,16 @@
-def old_roman_numeral num
-  # your code here
-end
\ No newline at end of file
+def old_roman_numeral(number)
+  num = ""
+  num = num + "M" * (number / 1000)
+  num = num + "D" * (number % 1000 / 500)
+  num = num + "C" * (number % 500 / 100)
+  num = num + "L" * (number % 100 / 50)
+  num = num + "X" * (number % 50 / 10)
+  num = num + "V" * (number % 10 / 5)
+  num = num + "I" * (number % 5 / 1)
+end
+
+puts old_roman_numeral(4)
+puts old_roman_numeral(5)
+puts old_roman_numeral(10)
+puts old_roman_numeral(19)
+puts old_roman_numeral(22)
diff --git a/ch09-writing-your-own-methods/roman_numerals.rb b/ch09-writing-your-own-methods/roman_numerals.rb
index 5c93b59ac..d77c1e3cf 100644
--- a/ch09-writing-your-own-methods/roman_numerals.rb
+++ b/ch09-writing-your-own-methods/roman_numerals.rb
@@ -1,3 +1,46 @@
-def roman_numeral num
-  # your code here
-end
\ No newline at end of file
+def roman_numeral(num)
+  thousands = (num / 1000)
+  hundreds = (num % 1000 / 100)
+  tens = (num % 100 / 10)
+  ones = (num % 10)
+  roman = "M" * thousands
+
+  if hundreds == 9
+    roman += "CM"
+  elsif hundreds == 4
+    roman += "CD"
+  else
+    roman += "D" * (num % 1000 / 500)
+    roman += "C" * (num % 500 / 100)
+  end
+  if tens == 9
+    roman += "XC"
+  elsif tens == 4
+    roman += "XL"
+  else
+    roman += "L" * (num % 100 / 50)
+    roman += "X" * (num % 50 / 10)
+  end
+  if ones == 9
+    roman += "IX"
+  elsif ones == 4
+    roman += "IV"
+  else
+    roman += "V" * (num % 10 / 5)
+    roman += "I" * (num % 5 / 1)
+  end
+  roman
+end
+
+puts roman_numeral(1)
+puts roman_numeral(2)
+puts roman_numeral(3)
+puts roman_numeral(4)
+puts roman_numeral(5)
+puts roman_numeral(6)
+puts roman_numeral(7)
+puts roman_numeral(8)
+puts roman_numeral(9)
+puts roman_numeral(10)
+puts roman_numeral(14)
+puts roman_numeral(19)
diff --git a/ch10-nothing-new/dictionary_sort.rb b/ch10-nothing-new/dictionary_sort.rb
index c9893d0fd..1980a2e51 100644
--- a/ch10-nothing-new/dictionary_sort.rb
+++ b/ch10-nothing-new/dictionary_sort.rb
@@ -1,3 +1,22 @@
-def dictionary_sort arr
-  # your code here
-end
\ No newline at end of file
+def dictionary_sort(arr)
+  rec_sort_dic arr, []
+end
+def rec_sort_dic(unsorted, sorted)
+  if unsorted.length <= 0
+    return sorted
+  end
+  smallest = unsorted.pop
+  still_unsorted = []
+  unsorted.each do |tested|
+    if tested.downcase < smallest.downcase
+      still_unsorted.push smallest
+      smallest = tested
+    else
+      still_unsorted.push tested
+    end
+  end
+  sorted.push smallest
+  rec_sort_dic(still_unsorted, sorted)
+end
+
+puts(dictionary_sort(["zebra", "cheetah", "giraffe", "cougar", "leopard", "elephant"]))
diff --git a/ch10-nothing-new/english_number.rb b/ch10-nothing-new/english_number.rb
index c0129bc4e..23d76ced4 100644
--- a/ch10-nothing-new/english_number.rb
+++ b/ch10-nothing-new/english_number.rb
@@ -1,3 +1,66 @@
-def english_number number
-  # your code here
+def english_number(num)
+  if num < 0
+    return "Please enter a positive number."
+  end
+  if num == 0
+    return "zero"
+  end
+  num_string = ""
+  ones = ["one", "two", "three", "four", "five", "six", "seven", "eight", "nine", "ten"]
+  tens = ["ten", "twenty", "thirty", "forty", "fifty", "sixty", "seventy", "eighty", "ninety"]
+  teenagers = ["eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"]
+  zillions = [["hundred", 2], ["thousand", 3], ["million", 6], ["billion", 9], ["trillion", 12],
+              ["quadrillion", 15], ["quintillion", 18], ["sextillion", 21], ["septillion", 24],
+              ["octillion", 27], ["nonillion", 30], ["decillion", 33], ["undecillion", 36],
+              ["duodecillion", 39], ["tredecillion", 42], ["quattuordecillion", 45],
+              ["quindecillion", 48], ["sexdecillion", 51], ["septendecillion", 54],
+              ["octodecillion", 57], ["novemdecillion", 60], ["vigintillion", 63], ["googol", 100]]
+  left = num
+
+  while zillions.length > 0
+    zil_pair = zillions.pop
+    zil_name = zil_pair[0]
+    zil_base = 10 ** zil_pair[1]
+    write = left / zil_base
+    left -= write ** zil_base
+    if write > 0
+      prefix = english_number write
+      num_string += prefix + " " + zil_name
+      if left > 0
+        num_string += " "
+      end
+    end
+  end
+  write = left / 10
+  left -= write * 10
+  if write > 0
+    if write == 1 && left > 0
+      num_string += teenagers[left - 1]
+      left = 0
+    else
+      num_string += tens[write - 1]
+    end
+    if left > 0
+      num_string += "-"
+    end
+  end
+  write = left
+  left = 0
+  if write > 0
+    num_string += ones[write - 1]
+  end
+  num_string
 end
+
+puts english_number(1)
+puts english_number(2)
+puts english_number(3)
+puts english_number(4)
+puts english_number(5)
+puts english_number(6)
+puts english_number(7)
+puts english_number(8)
+puts english_number(9)
+puts english_number(10)
+puts english_number(222222)
+puts english_number(33333)
diff --git a/ch10-nothing-new/ninety_nine_bottles_of_beer.rb b/ch10-nothing-new/ninety_nine_bottles_of_beer.rb
index 801de24bd..6cac38c16 100644
--- a/ch10-nothing-new/ninety_nine_bottles_of_beer.rb
+++ b/ch10-nothing-new/ninety_nine_bottles_of_beer.rb
@@ -1 +1,13 @@
-# your code here
\ No newline at end of file
+num_at_start = 99
+num_now = num_at_start
+while num_now > 2
+  puts "#{english_number(num_now).capitalize} bottles of beer on the wall, #{english_number(num_now)} bottles of beer!"
+  num_now -= 1
+  puts "Take on down, pass it around, #{english_number(num_now)} bottles of beer on the wall!"
+end
+puts """
+ Two bottles of beer on the wall, two bottles of beer!
+ Take one down, pass it around, one bottle of beer on the wall!
+ One bottle of beer on the wall, one bottle of beer!
+ Take one dow, pass it around, no more bottles of beer on the wall!
+ """
diff --git a/ch10-nothing-new/shuffle.rb b/ch10-nothing-new/shuffle.rb
index a486ad94c..f2257cc5a 100644
--- a/ch10-nothing-new/shuffle.rb
+++ b/ch10-nothing-new/shuffle.rb
@@ -1,3 +1,28 @@
-def shuffle arr
-  # your code here
-end
\ No newline at end of file
+# long way
+def shuffle(arr)
+  shuff = []
+  while arr.length > 0
+    rand_index = rand(arr.length)  # Randomly pick an element
+    curr_index = 0
+    new_arr = []
+    arr.each do |item|
+      if curr_index == rand_index
+        shuff.push item
+      else
+        new_arr.push item
+      end
+      curr_index += 1
+    end
+    arr = new_arr
+  end
+  shuff
+end
+
+# short way
+=begin
+def shuffle(arr)
+  arr.sort_by{rand}
+end
+=end
+animals = ["zebra", "donkey", "monkey", "tarsier", "platypus", "anteater", "koala"]
+puts shuffle(animals)
diff --git a/ch10-nothing-new/sort.rb b/ch10-nothing-new/sort.rb
index 44c6deb58..78efeb463 100644
--- a/ch10-nothing-new/sort.rb
+++ b/ch10-nothing-new/sort.rb
@@ -1,3 +1,38 @@
-def sort arr
-  # your code here
-end
\ No newline at end of file
+# long way
+def sort(arr)
+  rec_sort arr, []
+end
+
+def rec_sort(unsorted, sorted)
+  if unsorted.length <= 0
+    return sorted
+  end
+  smallest = unsorted.pop             # starting point
+  still_unsorted = []
+  unsorted.each do |tested|
+    if tested < smallest                  # comparison
+      still_unsorted.push smallest      # add for further resorting later
+      smallest = tested                 # reassign value for tested to be compared with next tested value
+    else
+      still_unsorted.push tested        # in this case tested is larger
+    end
+  end
+    sorted.push smallest
+    rec_sort(still_unsorted, sorted)
+end
+
+puts (sort(["can", "feel","singing", "like", "a", "can"]))
+animals = ["zebra", "donkey", "monkey", "tarsier", "platypus", "anteater", "koala"]
+puts
+puts sort(animals)
+
+# short way
+=begin
+def sort(arr)
+  return arr if arr.length <= 1               # breaks the loop
+  mid_point = arr.pop                         # acts as the starting point for comparisons
+  smaller = arr.select {|x| x < mid_point}
+  bigger = arr.select {|x| x > mid_point}
+  sort(smaller) + [mid_point] + sort(bigger)
+end
+=end
diff --git a/ch11-reading-and-writing/build_a_better_playlist.rb b/ch11-reading-and-writing/build_a_better_playlist.rb
index 3b31bd241..cda96c590 100644
--- a/ch11-reading-and-writing/build_a_better_playlist.rb
+++ b/ch11-reading-and-writing/build_a_better_playlist.rb
@@ -1,3 +1,30 @@
-def music_shuffle filenames
-  # your code here
+def music_shuffle(filenames)
+  filenames = filenames.sort
+  length = filenames.length
+  2.times do
+    l_idx = 0
+    r_idx  = length / 2
+    shuff = []
+    while shuff.length < length
+      if shuff.length % 2 == 0
+        shuff.push(filenames[r_idx])
+        r_idx += 1
+      else
+        shuff.push(filenames[l_idx])
+        l_idx += 1
+      end
+    end
+    filenames = shuff
+  end
+  arr = []
+  cut = rand(length)
+  idx = 0
+  while idx < length
+    arr.push(filenames[(idx + cut) % length])
+    idx += 1
+  end
+  arr
 end
+
+songs = ["aa/bbb", "aa/ccc", "aa/ddd", "AAA/xxxx", "AA/yyyy", "AAA/zzzz", "foo/bar"]
+puts music_shuffle(songs)
diff --git a/ch11-reading-and-writing/build_your_own_playlist.rb b/ch11-reading-and-writing/build_your_own_playlist.rb
index 801de24bd..f96f1e603 100644
--- a/ch11-reading-and-writing/build_your_own_playlist.rb
+++ b/ch11-reading-and-writing/build_your_own_playlist.rb
@@ -1 +1,7 @@
-# your code here
\ No newline at end of file
+all_oggs = shuffle(Dir["**/*.ogg"])
+File.open "playlist.m3u", "w" do |f|
+  all_oggs.each do |ogg|
+    f.write ogg + "\n"
+  end
+end
+puts "Finished!"
diff --git a/ch12-new-classes-of-objects/birthday_helper.rb b/ch12-new-classes-of-objects/birthday_helper.rb
index 801de24bd..df3989cf3 100644
--- a/ch12-new-classes-of-objects/birthday_helper.rb
+++ b/ch12-new-classes-of-objects/birthday_helper.rb
@@ -1 +1,21 @@
-# your code here
\ No newline at end of file
+birth_dates = {}
+File.read("birthdates.txt").each_line do |line|
+    line = line.chomp
+    first_comma = 0
+    while line[first_comma] != "," &&
+        first_comma < line.length
+        first_comma += 1
+    end
+    name = line[0..(first_comma - 1)]
+    date = line[-12..-1]
+    birth_dates[name] = date
+  end
+
+puts "Who's birthday would you like to know?"
+name = $stdin.gets.chomp
+date = birth_dates[name]
+if date == nil
+  puts "Sorry, I don't know that one."
+else
+  puts date[0..5]
+end
diff --git a/ch12-new-classes-of-objects/happy_birthday.rb b/ch12-new-classes-of-objects/happy_birthday.rb
index 801de24bd..78c75d6ec 100644
--- a/ch12-new-classes-of-objects/happy_birthday.rb
+++ b/ch12-new-classes-of-objects/happy_birthday.rb
@@ -1 +1,13 @@
-# your code here
\ No newline at end of file
+puts "Only enter integers please"
+puts "What year were you born?"
+year = gets.chomp
+puts "What month were you born?"
+month = gets.chomp
+puts "What date was the day you were born?"
+day = gets.chomp
+
+age_result = Time.now - Time.local(year, month, day)
+age_in_years = age_result / (60 * 60 * 24 *365)
+puts "Just in case you have forgotten, I would like to remind you"
+puts "that you are #{age_in_years.floor} years old!"
+puts "SPANK!\n" * age_in_years
diff --git a/ch12-new-classes-of-objects/one_billion_seconds.rb b/ch12-new-classes-of-objects/one_billion_seconds.rb
index 801de24bd..72affcad9 100644
--- a/ch12-new-classes-of-objects/one_billion_seconds.rb
+++ b/ch12-new-classes-of-objects/one_billion_seconds.rb
@@ -1 +1,2 @@
-# your code here
\ No newline at end of file
+age = Time.now - Time.local(1985, 6, 5, 14, 00)
+puts "I am #{age} seconds old!"
diff --git a/ch13-creating-new-classes/extend_built_in_classes.rb b/ch13-creating-new-classes/extend_built_in_classes.rb
index c3e793933..b78ae990f 100644
--- a/ch13-creating-new-classes/extend_built_in_classes.rb
+++ b/ch13-creating-new-classes/extend_built_in_classes.rb
@@ -1,3 +1,22 @@
 class Integer
-  # your code here
-end
\ No newline at end of file
+  def factorial
+    if self <= 1
+      1
+    else
+      self * (self - 1).factorial
+    end
+  end
+  def to_roman
+    roman = ""
+    roman += "M" * (self / 1000)
+    roman += "D" * (self % 1000 / 500)
+    roman += "C" * (self % 500 / 100)
+    roman += "L" * (self % 100 / 50)
+    roman += "X" * (self % 50 / 10)
+    roman += "V" * (self % 10 / 5)
+    roman += "I" * (self % 5 / 1)
+  end
+end
+
+puts 7.factorial
+puts 73.to_roman
diff --git a/ch13-creating-new-classes/interactive_baby_dragon.rb b/ch13-creating-new-classes/interactive_baby_dragon.rb
index 801de24bd..e92012585 100644
--- a/ch13-creating-new-classes/interactive_baby_dragon.rb
+++ b/ch13-creating-new-classes/interactive_baby_dragon.rb
@@ -1 +1,23 @@
-# your code here
\ No newline at end of file
+puts "What would you like to name our baby dragon?"
+name = $stdin.gets.chomp
+pet = Dragon.new(name)
+while true
+  puts
+  puts "Commands: feed, toss, walk, rock, puts to bed, exit"
+  command = $stdin.gets.chomp
+  if command == "exit"
+    exit
+  elsif command == "feed"
+    pet.feed
+  elsif command == "toss"
+    pet.toss
+  elsif command == "walk"
+    pet.walk
+  elsif command == "rock"
+    pet.rock
+  elsif command == "put to bed"
+    pet.put to bed
+  else
+    puts "Huh? Please type one of the commands."
+  end
+end
diff --git a/ch13-creating-new-classes/orange_tree.rb b/ch13-creating-new-classes/orange_tree.rb
index 025d08907..0682b7b8e 100644
--- a/ch13-creating-new-classes/orange_tree.rb
+++ b/ch13-creating-new-classes/orange_tree.rb
@@ -1,11 +1,80 @@
-# in order to pass the rspec please follow the below rates of growth, orange production and age of death.
-# have your OrangeTree grow by 0.4 per year.
-# have it produce no oranges in its first 5 years
-# starting in its sixth year have it produce oranges at a rate of (height * 15 - 25) per year.
-# have the tree die after 25 years.
-# check out the rspec spec/ch13/orange_tree_spec.rb to see what strings we're looking for in the responses.
+=begin
+in order to pass the rspec please follow the below rates of growth, orange
+      production and age of death.
+have your OrangeTree grow by 0.4 per year.
+have it produce no oranges in its first 5 years starting in its sixth year
+      have it produce oranges at a rate of (height * 15 - 25) per year.
+have the tree die after 25 years.
 
+check out the rspec spec/ch13/orange_tree_spec.rb to see what strings
+we're looking for in the responses.
+=end
 
 class OrangeTree
-  # your code here
+  def initialize
+    @height = 0
+    @orange_count = 0
+    @alive = true
+  end
+  def height
+    if @alive
+      @height
+    else
+      "A dead tree is not very tall. :("
+    end
+  end
+  def count_the_oranges
+      if @alive
+          @orange_count
+        else
+          "A dead tree has no oranges. :("
+      end
+  end
+  def one_year_passes
+    if @alive
+      @height += 0.4
+      @orange_count = 0
+      if @height > 10 && rand(2) > 0
+        @alive = false
+        "Oh, no! The tree is too old, and has died. :("
+      elsif @height > 2
+        @orange_count = (@height * 15 - 25).to_i
+        "This year your tree grew to #{@height}m tall," +
+        " and produced #{@orange_count} oranges."
+      else
+        "This year your tree grew to #{@height}m tall," +
+        " but is still too young to bear fruit."
+      end
+    else
+      "A year later, the tree is still dead. :("
+    end
+  end
+  def pick_an_orange
+    if @alive
+      if @orange_count > 0
+        @orange_count -= 1
+        "You pick a juicy, delicious orange!"
+      else
+        "You search every branch, but find no oranges."
+      end
+    else
+      "A dead tree has nothing to pick. :("
+    end
+  end
 end
+ot = OrangeTree.new
+23.times do
+  ot.one_year_passes
+end
+
+puts(ot.one_year_passes)
+puts(ot.count_the_oranges)
+puts(ot.height)
+puts(ot.one_year_passes)
+puts(ot.one_year_passes)
+puts(ot.one_year_passes)
+puts(ot.one_year_passes)
+puts(ot.one_year_passes)
+puts(ot.height)
+puts(ot.count_the_oranges)
+puts(ot.pick_an_orange)
diff --git a/ch13-creating-new-classes/slightly_different_baby_dragon.rb b/ch13-creating-new-classes/slightly_different_baby_dragon.rb
new file mode 100644
index 000000000..af1801514
--- /dev/null
+++ b/ch13-creating-new-classes/slightly_different_baby_dragon.rb
@@ -0,0 +1,117 @@
+class Dragon
+
+  def initialize(name, gender)
+    @name = name
+      if (gender == "Male" || gender == "male" || gender == "M" || gender == "m")
+        @gender = "He"
+      elsif (gender == "Female" || gender == "female" || gender == "F" || gender == "f")
+        @gender = "She"
+      else
+        @gender = name
+      end
+    @sleep = false
+    @stuff_in_belly = 10
+    @stuff_in_intestine = 0
+
+    puts "#{name} is born."
+  end
+
+  def feed
+    puts "You feed #{@name}."
+    @stuff_in_belly = 10
+    passage_of_time
+  end
+
+  def walk
+    puts "You walk #{@name}."
+    @stuff_in_intestine = 0
+    passage_of_time
+  end
+
+  def put_to_bed
+    puts "You put #{@name} to bed."
+    @asleep = true
+    3.times do
+      if @asleep
+        passage_of_time
+      end
+      if @asleep
+        puts "#{@name} snores, filling the room with smoke."
+      end
+    end
+    if @asleep
+      @asleep = false
+      puts "#{@name} wakes up slowly."
+    end
+  end
+
+  def toss
+    puts "You toss #{@name} into the air."
+    puts "#{@gender} giggles, which singes your eyebrows."
+    passage_of_time
+  end
+
+  def rock
+    puts "You rock #{@name} gently."
+    @asleep = true
+    puts "#{@gender} briefly dozes off..."
+    passage_of_time
+    if @asleep
+      @asleep = false
+      puts "...but wakes when you stop."
+    end
+  end
+
+  private
+
+  def hungry?
+    @stuff_in_belly <= 2
+  end
+
+  def poopy?
+    @stuff_in_intestine >= 8
+  end
+
+  def passage_of_time
+    if @stuff_in_belly > 0
+      @stuff_in_belly -= 1
+      @stuff_in_intestine += 1
+    else
+      if @asleep
+        @asleep = false
+        puts "#{@gender} wakes up sudeenly!"
+      end
+      puts "#{@name} is starving! In desperation, #{@gender} ATE you!"
+      exit
+    end
+    if @stuff_in_intestine >= 10
+      @stuff_in_belly = 0
+      puts "Whoops! #{@name} had an accident..."
+    end
+    if hungry?
+      if @asleep
+        @asleep = false
+        puts "#{@gender} wakes up suddenly!"
+      end
+      puts "#{@name}'s stomach grumbles..."
+    end
+    if poopy?
+      if @asleep
+        @asleep = false
+        puts "#{@gender} wakes up suddenly!"
+      end
+      puts "#{@name} does the potty dance..."
+    end
+  end
+end
+
+pet = Dragon.new "Yiwei", "Female"
+pet.feed
+pet.toss
+pet.walk
+pet.put_to_bed
+pet.rock
+pet.put_to_bed
+pet.put_to_bed
+pet.put_to_bed
+pet.put_to_bed
diff --git a/ch14-blocks-and-procs/better_program_logger.rb b/ch14-blocks-and-procs/better_program_logger.rb
index 0e2e18d57..9e6e87a41 100644
--- a/ch14-blocks-and-procs/better_program_logger.rb
+++ b/ch14-blocks-and-procs/better_program_logger.rb
@@ -1,3 +1,19 @@
-def log desc, &block
-  # your code here
-end
\ No newline at end of file
+$logger_depth = 0
+def log(desc, &block)
+  prefix = " "*$logger_depth
+  puts "#{prefix}Beginning \"#{desc}\"..."
+  $logger_depth += 1
+  result = block.call
+  $logger_depth -= 1
+  puts "#{prefix}...\"#{desc}\" finished, returning: #{result.to_s}"
+end
+log "outer block" do
+  log "teeny-tiny block" do
+    "lOtS oF lOVe".downcase
+  end
+  7 * 3 * 2
+end
+log "yet another block" do
+  "!doof naidnI evol I".reverse
+end
+"0" == "0"
diff --git a/ch14-blocks-and-procs/even_better_profiling.rb b/ch14-blocks-and-procs/even_better_profiling.rb
index b01b78fd8..d5a686230 100644
--- a/ch14-blocks-and-procs/even_better_profiling.rb
+++ b/ch14-blocks-and-procs/even_better_profiling.rb
@@ -1,3 +1,11 @@
-def profile block_description, &block
-  # your code here
-end
\ No newline at end of file
+def profile(block_description, &block)
+    profiling_on = false
+    if profiling_on
+      start_time = Time.new
+        block.call
+        duration = Time.new - start_time
+        puts "#{block_description}: #{duration} seconds"
+      else
+        block.call
+    end
+end
diff --git a/ch14-blocks-and-procs/grandfather_clock.rb b/ch14-blocks-and-procs/grandfather_clock.rb
index 916f6d354..ccf1edcc7 100644
--- a/ch14-blocks-and-procs/grandfather_clock.rb
+++ b/ch14-blocks-and-procs/grandfather_clock.rb
@@ -1,3 +1,16 @@
-def grandfather_clock &block
-  # your code here
-end
\ No newline at end of file
+
+def grandfather_clock(&block)
+  hour = Time.new.hour
+  if hour >= 13
+      hour -= 12
+  end
+  if hour == 0
+    hour = 12
+  end
+  hour.times do
+    block.call
+  end
+end
+grandfather_clock do
+  puts "DONG!"
+end
diff --git a/ch14-blocks-and-procs/program_logger.rb b/ch14-blocks-and-procs/program_logger.rb
index 0e2e18d57..dabed7e60 100644
--- a/ch14-blocks-and-procs/program_logger.rb
+++ b/ch14-blocks-and-procs/program_logger.rb
@@ -1,3 +1,14 @@
-def log desc, &block
-  # your code here
-end
\ No newline at end of file
+def program_log(desc, &block)
+  puts "Beginning \"#{desc}\"..."
+  result = block.call
+  puts "...\"#{desc} finished, returning: #{result.to_s}"
+end
+program_log "outer block" do
+  program_log "some little block" do
+    1**1 + 2**2
+  end
+  program_log "yet another block" do
+    "!doof iahT ekil I".reverse
+  end
+  "0" == 0
+end