Riddle: A man went on a trip with a fox, a goose, and a sack of corn. He came upon a stream with a little boat waiting in it. The man could only take himself and one other thing - the fox, the goose, or the sack of corn. How did the man get all three things across the stream in one trip?
Answer: The goose eats the corn and the fox eats the goose. Then the man takes the fox across teh stream with him.