Only people with high IQ will be able to spot odd letter in tricky brain teaser

A tricky brain teaser has challenged puzzlers to find a hidden letter among a grid of X's and K's - but only people with high IQ are able to spot it within 13 seconds

You might feel like you've overindulged this weekend and are struggling to concentrate on work. If that's the case, a brain teaser could be just what you need.

They're an excellent way to test your cognitive skills, problem-solving abilities, and help you focus. Plus, they're a tried and tested method of boosting your mood and giving your brain a much-needed lift.

JagranJosh recently posted a tricky brain teaser that dares you to spot a hidden letter among the X's and K's. Sounds simple?

Well, there's a catch - there's a time limit, and according to the website, only those with high IQs can spot the hidden letter within 13 seconds. The brain teaser consists of five rows of X's and K's, and you'll need to quickly scan all the rows and columns to find the answer. Can you spot the odd letter within the time limit?

If you need a hand, the answer is below – but don't scroll down unless you want spoilers.

Did you manage to find it?

If so, why not try another?

Apparently, you can officially call yourself a genius if you spot the odd cat in a tricky puzzle within seven seconds. Alternatively, can you find the correctly spelled word here?

Or challenge yourself to find the panda among the humans in this puzzle within seven seconds.

Another brain teaser dares you to find five specific items hidden in a picture featuring three people and a dog. If you can spot them within 15 seconds, you're considered a 'genius'.

Or, you could discover your worst personality traits with this optical illusion. Did you manage to spot the odd letter out?

Share your results in the comments section below.