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, September 21, 2011
Travel Over Cobblestone or Gravel
Used left or right, I get to travel, over cobblestone or gravel. Used up, I vie for sweet success, used down, I cause men great duress. What am I?