Tricky brain teaser can only be solved by people with an IQ of 135 and over in under 10 seconds

A new mathematical brainteaser claims only people with high IQs can solve it in nine seconds or less.

The puzzle challenges viewers to notice the pattern of five numbers placed in pie wedges to identify the missing piece.

The image features six triangular wedges in a circle with the numbers 4, 7, 13, 25 and 49 placed clockwise, with a question mark in the final section.

If you succeed in piecing together the country name in the allotted timeframe, it indicates that your intelligence score is 135 or higher.

To solve this brain teaser, viewers will need to study the numbers and identify a pattern among the numbers.

Here’s a hint: you should look at the mathematical difference between each one.

Starting with the top right number and working clockwise, viewers need to look at the difference between four and seven, which is three.

The next step is to find the difference between seven and 13, which is six – double the difference between the previous two numbers.

Then you’ll need to compare 13 and 25 to get 12, followed by 25 and 49 which is 24.

You might notice that with each sequence, the number difference doubles so if you continue this pattern, you’ll need to double 24 to get 48.

Then add 48 to the last number before the question mark which gives you the answer: 97. 

Another pattern would be to multiply the number in each wedge by two and subtract one to get the next sequence. 

Starting with the four in the top right corner, the difference between each number doubles, meaning the answer is 97

If you didn’t get the answer in the nine-second timeframe, don’t be discouraged by having an IQ less than 135. 

The average IQ – which stands for intelligence quotient – is about 98 in the US, with men averaging 99 and women coming in at 97.

Gifted people often get an average IQ score of 120 to 140, but only about two percent of the US population scores more than 130, giving them genius status.

Brain teasers are useful to improve a person’s logic and problem-solving skills as well as enhancing your concentration, spatial reasoning and even your IQ.

A study conducted by the University of Michigan found that people who worked on challenging brain teasers for at least 25 minutes each day increased their IQ by up to four points.

These games also work both hemispheres of your brain – the left which controls your logical and analytical thinking and the right which is in charge of creativity.

The brain is like a muscle and those who work it out regularly with brain teasers will be more intelligent in the long run.