A Man Takes A Barrel That Weighs 20 Pounds And Then Puts Something In It...

Riddle: A man takes a barrel that weighs 20 pounds and then puts something in it. It now weighs less than 20 pounds. What did he put in the barrel?

Answer: He put a hole in the barrel to make it weigh less.

Source: https://www.riddles.com/281

A man takes a barrel that weighs 20 pounds and then puts something in it. It now weighs less than 20 pounds. What did he put in the barrel? — A man takes a barrel that weighs 20 pounds and then puts something in it... by Anonymous v1.

Riddle: A man takes a barrel that weighs 20 pounds and then puts something in it. It now weighs less than 20 pounds. What did he put in the barrel? Answer: He put a hole in the barrel to make it weigh less. — by Anonymous v2.