Answer:
How do you discover something that does not exist?
What can you fill a room with that takes up no space?
A claustrophobic person gets on a train. The train enters a tunnel just as it is leaving the station. Where is the best place for him to sit?
How can you throw a ball 20 meters, and have it come back to you without hitting anything?
A man is twenty years old but has only had five birthdays. How is that possible?
Iām grown from darkness but shine with a pale light. Very round I am and always a lady's delight.