I took this quote out of URL above, because it might interest others as it did me, to learn etymology of word "sphinx" I had also forgotten there was more than one sphinx
The sphinx terrorized Thebes before the arrival of Oedipus (see Oedipal Complex). She was a hybrid
creature with the head of a woman, body of a lion, wings of an eagle, and the tail of a serpent. She
punished those who failed to answer her riddle with strangulation (the Greek verb sphingein means to
. At some point the Greek sphinx became associated with Egyptian iconography, in which the
sphinx had a lion's body and a hawk's or man's head. When we liken someone to a sphinx, we have in
mind the great riddler of the Greeks and not the Egyptian conception. A sphinx is an inscrutable person,
given to enigmatic utterances (the Greek word ainigma means a riddle).