Q. What relation is that child to its own father who is not its father’s own son?
A. Surely his daughter.
Q. What is that which is often brought to table, always cut, but never eaten?
A. A pack of cards.
Q. Where was Peter when his candle went out?
A. He was in the dark.
Q. What relation is your uncle’s brother to you who is not your uncle?
A. He must be your father.
Q. What difference is there between twice five and twenty and twice twenty five?
A. The former is 30, the later is 50.