It cannot be seen, it weighs nothing, but when put into a barrel, it makes it lighter. What is it?
A hole

YOU ARE READING
The Book of Riddles
PoetryNeed some riddles to stump your friends or win your way out of a vey deep cave?
Barrels
It cannot be seen, it weighs nothing, but when put into a barrel, it makes it lighter. What is it?
A hole