Answer:
An archaeologist unearths a coin bearing the inscription "57BC". How does he instantly know that it's a forgery?
How could all of your cousins have an aunt who is not your aunt?
How can you throw a ball 20 meters, and have it come back to you without hitting anything?
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?
If there are three apples and you take away two, how many do you have?
What did the bodybuilder say when he opened his tub of protein powder?