Judges 14:10-14

10And his father went down unto the woman: and Samson made there a feast; for so used the young men to do. 11And it came to pass, when they saw him, that they brought thirty companions to be with him. 12And Samson said unto them, Let me now put forth a riddle unto you: if ye can declare it unto me within the seven days of the feast, and find it out, then I will give you thirty linen garments and thirty changes of raiment; 13but if ye cannot declare it unto me, then shall ye give me thirty linen garments and thirty changes of raiment. And they said unto him, Put forth thy riddle, that we may hear it. 14And he said unto them,

And they could not in three days declare the riddle.