input: Write a python function to filter even numbers from a given list using a lambda function.
  assert filter_evennumbers([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])==[2, 4, 6, 8, 10]
  assert filter_evennumbers([10, 21, 45, 68, 84, 93])==[10, 68, 84]
  assert filter_evennumbers([5, 7, 9, 8, 6, 4, 3])==[8, 6, 4]
output: def filter_evennumbers(lst):
      return list(filter(lambda x: x % 2 == 0, lst))