Only people with a 'high IQ' can spot the odd letter in this tricky brain teaser in 21 seconds

Some say playing brain games can make solving simple riddles more interesting, as you're required to engage in some seriously creative thinking.

And this fiendishly tricky brain teaser from JagranJosh will force you to put your logical reasoning skills to the test.

As the answer to this head-scratcher is not right in front of you, you will need to think a little differently if you're to find the solution. 

At first glance, this colourful image appears to feature only the letter 'Y', but that is not the case.

Hidden among all the brightly coloured letter 'Y's, there is one sneaky little 'X' - and apparently only those with a high IQ are able to quickly locate the rogue letter. 

Hidden in this fiendishly tricky brain teaser is a single letter 'X', among a sea of 'Y's. Those with an 'alert' mind should be able to spot it within 21 seconds

It is said that those with an 'alert' mind will spot the 'X' within 21 seconds - will you be able to do it?

Answering the puzzle will requiring some careful looking, and perhaps even a quick break from the screen if your eyes feel overwhelmed.

The puzzle features 13 rows and 31 columns of letter 'Y'. To spot the errant 'X', you will need to carefully comb throughout each row. 

Making the puzzle even trickier, is the colour scheme, which sees letters in bright colours of the rainbow, concealing the sneaky 'X' even more effectively.  

You can find the answer below, so make sure not to peek until you are sure you are ready! 

So are you struggling to spot the 'X'? Or maybe you just want confirmation you spotted it correctly?

It is well-hidden in the sixth row of the puzzle, and within the 29th column, and it is blue.

Still struggling to find it? The answer is unveiled in the image below, so you can stop tearing your hair out.

Did you manage to find it? Not everyone can. But if you didn't, there are tips and tricks you can employ for next time

How did you perform on the puzzle? Were you among those who were able to spot the 'X' in just 21 seconds?

If not, don't despair - you may be able to do better if you practice similar brain teasers.

Or maybe simply employing better strategies will help you with these types of puzzles. 

According to JagranJosh, while some teasers require mathematics skills or lateral thinking, this type is more a simple test of your observation skills.

If you scan the rows and columns carefully, using some logical reasoning skills, you should be able to eventually find the answer.