Depth Psychology of the Riddling Community

The riddle was originally a sacred game, and as such cut clear across any possible distinction between play and seriousness.

-- J. Huizinga

There seems to be a riddle

behind all riddles

which we have not yet guessed.

-- Northrop Frye

The Riddle of the Sphinx (mis à jour)

Contemporary Sphinx:  What walks on four legs in the morning, two legs at noon, and six legs at evening?

Modern Oedipus:  A person:   a crawling baby;  an adult with grown-up gait; and an oldster with a walker (which itself is a quadruped, like a rug-rat).