diff --git a/about_lists.py b/about_lists.py
index 58b8331..abcd99e 100644
--- a/about_lists.py
+++ b/about_lists.py
@@ -1,16 +1,26 @@
 # Task 1. Create a list containing squares for number from 1 up to 10.
 # Use list comprehension
 
+new_list = [i**2 for i in range(1, 11)]
+print(new_list)
+
 # Task 2. Create a list containig numbers leap years in the future from 2000 up to 2100
 # Use list comprehension with if condition
 # Hint: leap year is a year divisible by 4, but not by 100, unless it is divisible by 400
 
 def is_leap(year):
-    return True
+     if year % 4 == 0 and year % 100 != 0:
+        return True
+     else:
+        return False
 
+list_year = [i for i in range(2000, 2100) if is_leap(int(i))]
+print(list_year)
 
 # Task 3. You are given a dictionary with vehicles and their weights:
-vehicles = {'sedan': 1550, 'Pickup': 2000, 'bicycle': 20, 'TRUCK': 7000, 'motorcycle': 200, 'Minivan': 1700, 'SUV': 2500, 'van': 3500, 'Semi': 12000, 'Bus': 3000}
-
+vehicles = {'sedan': 1550, 'Pickup': 2000, 'bicycle': 20, 'TRUCK': 7000, 'motorcycle': 200, 'Minivan': 1700,
+            'SUV': 2500, 'van': 3500, 'Semi': 12000, 'Bus': 3000}
+listunder = {i.upper() for i in vehicles if vehicles[i] < 5000}
+print(listunder)
 # With single list comprehension select vehicle those weight is below 5000 kg
 # Convert names to upper-case within same list comprehension
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