Logical Puzzle Asked In Interview

Logical Puzzle Asked In Interview Solution - 18 December

I organized a small get together at my home.
In the party , i have a barrel with some whiskey in it.

Suddenly Guest 1 say 'I bet this barrel of whiskey is more than half full'.
'No, its less than half full' Guest 2 replied.

I don't have any measuring instrument and without removing whiskey from it , how can i determine which of the guest is right ?

Update Your Answers at : Click Here

Solution
Tilt the barrel until the whiskey barely touches the lip of the barrel. If the bottom of the barrel is visible then it is less than half full.If the barrel bottom is still completely covered by the whiskey, then it is more than half full.