Its Refers To Him
Riddle: What has 2 legs in the morning 4 legs in the evening and 3 legs at noon?
Answer: It refers to Oedipus once being metaphorically human until he had incest with his mom and fell to the level of beasts but then to retain some humanity, for atonement he slashed his own eyes so that he became blind and needed a cane to walk hence having the legs.
Source: https://www.riddles.com/6459
