input: Write a python function to remove all numbers from a list.
  assert remove_numbers([3, 1, 4, 5, 6, 2]) == []
  assert remove_numbers([3, "apple", 4, "banana", 6, "cherry"]) == ["apple", "banana", "cherry"]
  assert remove_numbers(["hello", "world", 1, 2, 3]) == ["hello", "world"]
output: def remove_numbers(lst):
      return [item for item in lst if not isinstance(item, (int, float))]