input: Write a python function to create a dictionary from a list where the keys are the indices and the values are the even numbers.
  assert create_even_dict([1, 2, 3, 4, 5]) == {1: 2, 3: 4}
  assert create_even_dict([10, 15, 20, 25]) == {0: 10, 2: 20}
  assert create_even_dict([7, 8, 9, 10, 11]) == {1: 8, 3: 10}
output: def create_even_dict(lst):
      return {i: num for i, num in enumerate(lst) if num % 2 == 0}