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, February 22, 2006
Why are walls often "sweaty" after a fire? (This is a trivia question, not a riddle or a joke).