Judges 14:12-13

12“Let me tell you a riddle,” Samson said to them. “If you can explain it to me during the seven days of the feast and figure it out, I will give you thirty linen garments and thirty changes of clothes.

13But if you can’t explain it to me, you must give me thirty linen garments and thirty changes of clothes.” “Tell us your riddle,” they replied. “Let’s hear it.”