Hard
Hard
15 XP

The Poisoned Wine Barrel

24,231 solved 58% solve rate 42% fail rate
You have 1000 barrels of wine, one is poisoned. You have 10 prisoners to test. Poison kills in exactly 24 hours. How do you find the poisoned barrel in one day?
Only 58% solve this correctly
24,231 attempts
Earn +15 XP for solving
Quick Answer & Explanation
10 testers

The answer to this riddle is 10 testers. Difficulty: Hard · Solved by 24,231 puzzle lovers.

Number bottles in 10-bit binary (2^10 = 1024). Each tester drinks from bottles where their assigned bit is 1. The exact death pattern reveals the binary number of the poisoned bottle.
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