Riddles Random Riddle: Legs September 3, 2018June 4, 2018 gags What goes on four legs in the morning, on two legs at noon, and on three legs in the evening? Show answer A human. Humans crawl on hands and knees (“four legs”) as a baby, walk on two legs in mid-life (representing “noon,”) and use a walking stick or cane (“three legs”) in old age.