the Sphinx, bringer of bad luck and destruction, half-woman and a lioness, she throws Oedipus a riddle outside of Thebes strangled with a curse: what goes on fours in the morning, two at midday and three in the evening?
Oedpius, born a prince, feet-mangled and soon to be a king, well-traveled and bored and wishing for greater challenges than a riddling sphinx in his way, answers: look at me in my prime, I walk on two and I crawled on fours and I shall walk with a staff soon enough... that is the lot of my kind, humankind...
and the Sphinx, not one to condone one better than itself, devours itself...
the famous riddle that the sphinx asked of Oedipus;also see my poem: 'the second riddle'