The more of this there is, the less you see. What is it?

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, it's 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 ?

What's the best place to go shopping in the ocean?

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

It is a nine-letter word.
The exact opposite of the phrase "friendly and outgoing"
It contains the word "over".
It starts will a vowel.

What is it?