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, April 18, 2012
Passing at High Speed
Why was the man able to pass three cars going 70 miles-per-hour, while he was going only 60 miles-per-hour?