Why is the longest human nose just 11 inches?

John has played 50 ODI's and his average is 50. How many runs should he score in his 51st ODI, so that his average score jumps to 51?

In the city of Brain Teasers, 5% of people do not list their phone numbers. Now if we select random 100 people from the phone directory, then how many people selected will have unlisted phone numbers?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

Can you write down eight eights so that they add up to one thousand?

Make eight squares by moving only two matchsticks.
Note- Square can be of different sizes.

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 ?

If 21x = 79x, what is the value of x?

What is next number in the pattern below:

131 517 192 123 ?