Answer:
What is a ten letter word that starts with gas?
Three doctors said that Bill was their brother. Bill said he had no brothers. Who was lying?
Why can't Kevin, who is now living in Canada, not be buried in the USA?
An archaeologist unearths a coin bearing the inscription "57BC". How does he instantly know that it's a forgery?
4 rubber ducks were floating in the bathtub, 2 floated away and 2 drowned. How many ducks are still alive?
What is always coming but never arrives?