Only high IQ people can spot tricky brain teaser's odd letter within 13 seconds

What better way to kick off the than with some brain exercises? You might feel like you've been working too hard this week and need something to distract your mind from work. If that's the case, a could be just what you're looking for.

They're an excellent way of challenging your cognitive skills, problem-solving abilities, and also helping you concentrate. They're also a tried and tested method of improving your mood and giving your brain a much-needed boost. JagranJosh recently posted a tricky brain teaser that dares you to identify a hidden letter among the X's and K's.

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Does that sound simple? Well, there's a time limit, and according to the website, only individuals with high IQ can spot the hidden letter within 13 seconds.

In the brain teaser, there are 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 assistance, you can see the answer below – but don't scroll down unless you want spoilers. Did you manage to spot it? If so, why not give another a go?

Apparently you can officially call yourself if you spot the odd cat within seven seconds.

Alternatively, you could try to

Or you could challenge yourself to find the in this puzzle within seven seconds.

Another puzzle challenges you to spot an image of three people and a dog. If you can find them within 15 seconds you're deemed a 'genius'.

Alternatively, you could try and find out your