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!
Monday, January 08, 2007
It's always 1 to 6. It's always 15 to 20 and it's always 5, unless it's flying, when it's always 21.