input: Write a function to filter even numbers from a list using a lambda function.
  assert filter_evennumbers([3, 6, 8, 11])==[6, 8]
  assert filter_evennumbers([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])==[2, 4, 6, 8, 10]
  assert filter_evennumbers([10, 21, 34, 47, 58, 69])==[10, 34, 58]
output: def filter_evennumbers(lst):
      return list(filter(lambda x: x % 2 == 0, lst))