Answer:
A murderer is condemned to death. He has to choose between three rooms. The first is full of raging fires, the second is full of assassins with loaded guns, and the third is full of lions that haven't eaten in 3 years. Which room is safest for him?
How could all of your cousins have an aunt who is not your aunt?
What can you fill a room with that takes up no space?
What is the building that you leave without ever having entered.
How do you discover something that does not exist?
What is it that makes tears without sorrow. And takes its journey to heaven?