People Are Going Nuts Solving This Puzzle, Now It's Time To Test Your IQ!

Don't look for calculator!

People Are Going Nuts Solving This Puzzle, Now It's Time To Test Your IQ!

Challenging riddles and puzzles excite our brains. 

If you are one of those people who enjoy working on puzzles and do not rest unless you have the answer, here's a tricky one for you. This IQ test is prepared by Mensa International, UK.

Try it.

This circle is missing something. What is it?

The puzzle

I see a question mark there. What number out of the given options should replace it? 10,8,5,3, or 2?


Someone said 5!

Human palm

Are you sure, it should be 5 there? 

Oh come don't need a calculator for it!


It is an IQ test, not an algebra problem!

So, you came up with 10?

Human fingers

Nops, keep trying...

Are you done scratching your head?

Scratching head

It is not 5, it is not 10. Then what is it?

Here's a hint....

A woman speaks

Take this hint. Don't have an answer? I cannot wait. 

Here's the answer...

The puzzle

The answer is 2. Here's how:

Look closely at the series. The sum of the numbers in each slice of the outer ring makes a place in the next slice of the inner ring. For example, the sum of 4 and 2 in the slice having a question mark is 6 and is displayed in the inner ring of the next slice, moving clockwise. You got it! 

Go on, challenge your friends and test their IQ. 

Could you solve this puzzle without help or hint?