As we begin to settle back into work after the Easter break, many will be struggling to regain their focus after a relaxing holiday.
One way to get your day back on track is by completing brain teasers, as they improve the ability to stay focused on one singular task, reports the Mirror.
Studies have revealed that challenging brain teasers can improve people's overall cognitive function, as well as boosting memory.
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And we have one difficult one here, as website JagranJosh says that if you can complete this teaser, you have a high IQ.
In this eye-watering puzzle, 11 rows of the letter M is shown - and the challenge is to spot the hidden N among them. Easy enough, right?
However, your mind will begin to play tricks on you as you search for the letter N, as it challenges your brain to think in a different way.
The hardest part is that challengers only have 11 seconds to find the hidden N. If you manage to spot the hidden letter within 11 seconds, that's when you can really boast about having high IQ.
To spot the odd letter, it is best to try and look quickly through all the rows - but if you really are struggling to find it, we have also posted the answer below - so stop reading here if you want to find it first.
And if you just need a hint, then look at the top half of the image first.
The N is hidden in the intersection between the third row and the fifth column. If you managed to find it within the time limit, you most certainly have a decent intellect.
Did you manage to find the hidden N in this brain teaser? Let us know in the comment section below.
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