I'm posting one puzzle, riddle, math, or statistical problem a day. Try to answer each one and post your answers in the comments section. I'll post the answer the next day. Even if you have the same answer as someone else, feel free to put up your answer, too!
Wednesday, December 14, 2005
This is a trick question
Your neighbor has four apple trees in his yard. How many kinds of apples could he be growing?