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!
Friday, August 19, 2011
Always Feeling Old
Always old, sometimes new, never sad, sometimes blue. Never empty, sometimes full, never pushes, always pulls.