Judges 14:12-13 NIV

[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. [13] If 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.”