The Riddle of my son, The Riddle of Sphinx

人呀人，兩隻腳嘅係人、三隻腳又係人、四隻腳都係人

My son tested me on this riddle :

“What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?”

As smart as Oedipus in Greek mythology, of course I know the answer is a man, who crawls on all fours as a baby, walks on two legs as an adult, and walks with a cane in old age.  

Though I did not want Michael to destroy himself as Sphinx did, I think I should have enslaved him as a condition of solving the riddle.  By the way, the adorable use of morning, noon, and night as metaphors for the times in human life cycle is indeed gorgeous.