Answer:
What can you fill a room with that takes up no space?
First I threw away the outside and cooked the inside then I ate the outside and threw away the inside. What did I eat?
What goes up the hill and down the hill, And spite of all, yet stand still?
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?
What coin doubles in value when half is deducted?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.