In Greek mythology, a Sphinx symbolizes mystery, riddle, and the intertwining of wisdom and terror. It is depicted with a human head and a lion's body, challenging travelers with riddles. Those who cannot solve its riddles face dire consequences, usually death. The Sphinx's riddles reflect deeper philosophical themes concerning knowledge and the human condition, making it a significant figure in mythological narratives, especially in the story of Oedipus, where it serves as a catalyst for tragedy and revelation.