The idea originated in Greek mythology.
The idea originated in Roman mythology.
The idea originated in American mythology.
The idea originated online.
Who should I kill?
Do you know the way?
What walks on four feet in the morning, on two at noon, and on three in the evening?
What should I have for lunch?
They were killed
They passed the riddle.
They looked up the answer at the library.
They became friends with the sphinx.
He was very smart.
He had already heard this riddle.
He had help from the gods.