diff --git a/lesson-6/task1.py b/lesson-6/task1.py
new file mode 100644
index 0000000..b3fb4ad
--- /dev/null
+++ b/lesson-6/task1.py
@@ -0,0 +1,23 @@
+import time
+from itertools import cycle
+
+TRAFFIC_LIGHT_COLORS = (
+    ('RED', 7),
+    ('YELLOW', 2),
+    ('GREEN', 5),
+)
+
+
+class TrafficLight:
+    def __init__(self):
+        self.__color = None
+
+    def running(self):
+        for light in cycle(TRAFFIC_LIGHT_COLORS):
+            self.__color = light[0]
+            print(f'Color: {self.__color}. Sleep: {light[1]}s')
+            time.sleep(light[1])
+
+
+tl = TrafficLight()
+tl.running()
diff --git a/lesson-6/task2.py b/lesson-6/task2.py
new file mode 100644
index 0000000..09aa1c7
--- /dev/null
+++ b/lesson-6/task2.py
@@ -0,0 +1,11 @@
+class Road:
+    def __init__(self, length: int, width: int):
+        self._length = length
+        self._width = width
+
+    def calc_asphalt_weight(self, weight_pm: int = 25, depth: int = 5):
+        return self._width * self._length * weight_pm * depth
+
+
+road = Road(20, 5000)
+print(road.calc_asphalt_weight())
diff --git a/lesson-6/task3.py b/lesson-6/task3.py
new file mode 100644
index 0000000..d3aa67b
--- /dev/null
+++ b/lesson-6/task3.py
@@ -0,0 +1,23 @@
+class Worker:
+    def __init__(self, name, surname, position, income):
+        self.name = name
+        self.surname = surname
+        self.position = position
+        self._income = income
+
+
+class Position(Worker):
+    def get_full_name(self):
+        return '%s %s' % (self.name, self.surname)
+
+    def get_total_income(self):
+        try:
+            return self._income['wage'] + self._income['bonus']
+        except TypeError:
+            print('Income dict error')
+        return 0
+
+
+worker_1 = Position('NAME', 'SURNAME', 'POSITION', {"wage": 1234, "bonus": 5678})
+print(worker_1.get_full_name())
+print(worker_1.get_total_income())
diff --git a/lesson-6/task4.py b/lesson-6/task4.py
new file mode 100644
index 0000000..a883511
--- /dev/null
+++ b/lesson-6/task4.py
@@ -0,0 +1,80 @@
+import random
+
+
+class Car:
+    _speed = 0
+    _is_police = False
+
+    def __init__(self, name, color):
+        self.color = color
+        self.name = name
+
+    def __str__(self):
+        return 'Car: %s (%s)' % (self.name, self.color)
+
+    def go(self, speed):
+        self._speed = speed
+        self.show_speed()
+
+    def stop(self):
+        self._speed = 0
+        self.show_speed()
+
+    def turn(self, direction):
+        if self._speed > 0:
+            print('%s turn %s' % (self, direction))
+        else:
+            print('%s stopped and can`t turn' % self)
+
+    def show_speed(self):
+        if self._speed == 0:
+            print('%s. Stopped' % self)
+        else:
+            print('%s. Speed %d' % (self, self._speed))
+        # return self._speed
+
+    def print_is_police(self):
+        if self._is_police:
+            print('%s is police' % self)
+        else:
+            print('%s is not police' % self)
+
+
+class TownCar(Car):
+    def show_speed(self):
+        super().show_speed()
+        if self._speed > 60:
+            print('over speed')
+
+
+class SportCar(Car):
+    pass
+
+
+class WorkCar(Car):
+    def show_speed(self):
+        super().show_speed()
+        if self._speed > 40:
+            print('over speed')
+
+
+class PoliceCar(Car):
+    _is_police = True
+
+
+cars = [
+    TownCar('Lada', 'grey'),
+    WorkCar('Belaz', 'orange'),
+    SportCar('Honda', 'black'),
+    PoliceCar('Opel', 'white')
+]
+turn_list = ['left', 'right', 'around']
+for car in cars:
+    print(car)
+    car.print_is_police()
+    car.go(random.randint(0, 60))
+    car.go(random.randint(60, 240))
+    car.turn(random.choice(turn_list))
+    car.stop()
+    car.turn(random.choice(turn_list))
+    print('')
diff --git a/lesson-6/task5.py b/lesson-6/task5.py
new file mode 100644
index 0000000..5046ae7
--- /dev/null
+++ b/lesson-6/task5.py
@@ -0,0 +1,28 @@
+class Stationery:
+    def __init__(self, title):
+        self.title = title
+
+    def __str__(self):
+        return self.title
+
+    def draw(self):
+        print('Запуск отрисовки')
+
+
+class Pen(Stationery):
+    def draw(self):
+        print('Запуск отрисовки ручкой')
+
+
+class Pencil(Stationery):
+    def draw(self):
+        print('Запуск отрисовки карандашом')
+
+
+class Handle(Stationery):
+    def draw(self):
+        print('Запуск отрисовки маркером')
+
+
+for st in (Pen('Pen'), Pencil('Pencil'), Handle('Handle')):
+    st.draw()