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!
Thursday, February 19, 2009
A clock chimes 5 times in 4 seconds. How many times will it chime in 10 seconds?