Hey I think many of u know this riddle(may be all of u)
OK......Here Is The Riddle....
What is that which Walks on four legs in the morning.......On Two in the afternoon.........On three Legs in the evening.......
P.S:According to the legend many were not able to answer this puzzle posed by that creature and all got devored by it.then the young lad OEDEPUS solved it.Then the spihnx out of humiliation jumped from a tall cliff and killed itself