How Do You Know If There's An Elephant Under Your Bed

Riddle: How do you know if there's an elephant under your bed?

Answer: You bump your nose on the ceiling.

Source: https://www.riddles.com/835

How do you know if there's an elephant under your bed? — How do you know if there's an elephant under your bed by Anonymous v1.

Riddle: How do you know if there's an elephant under your bed? Answer: You bump your nose on the ceiling. — by Anonymous v2.