Judges 14:12-13

12“Let me tell you a riddle,” Samson said to them. “If you can give me the answer within the seven days of the feast, I will give you thirty linen garments and thirty sets of clothes.

13If you can’t tell me the answer, you must give me thirty linen garments and thirty sets of clothes.” “Tell us your riddle,” they said. “Let’s hear it.”