Answer:
I have two coins, one is marked George I and one is marked George IV. One is genuine but one is a forgery. Which is the forgery?
How can you place a pencil on the floor so that no one can jump over it?
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?
A man is twenty years old but has only had five birthdays. How is that possible?
Dry though I may be, I am still a sea.
Logic
Animal
Difficult
Easy
Food
Funny
Kids
What am I?