Brain teasers and optical illusions are a fantastic way of improving your cognitive abilities, and training your brain to work on more complicated puzzles over time is great for boosting brain power.
And if you're on the hunt for a new challenge to set your mind to, why not try out this optical illusion-style puzzle that's been leaving some scratching their heads in confusion? All you have to do is find the number hidden among the polka dots. Sounds simple, right? Give it a go!
At first glance, the picture seems to just be an array of yellow polka dots on a background that's a slightly lighter shade of yellow than the dots themselves, the Mirror reports.
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But not everything is as it seems because there's actually a number hidden in the dots - and according to Jagran Josh, you'll need "X-ray vision" if you want to spot it.
Have you found it yet? If you take less than nine seconds, you could be on track to calling yourself a genius, so try and find it as quickly as you can!
If you're struggling, here's a clue: you're looking for a three-digit number, and you'll want to think a little outside the box for this one. You're not necessarily looking for the number in a uniform row like some of our other puzzles.
Got it now? We're about to give you the answer, so if you're still working on it, don't scroll any further!
The number you were looking for was 725, and it was hidden in plain sight in the middle of the picture.
In the mood for more puzzles? Why not try another number-based game like this one, where you have just eight seconds to find the number two in a sea of other digits?
While there are also many similar puzzles that use words instead of numbers, such as this one that challenges you to find the word 'cold' among the 'gold's, or another that hides the word 'bare' in a sea of 'bear's.
For players who prefer image-based challenges, why not try this waterpark-themed brain teaser? In a mind-bending twist, you're searching for the blue rubber ring, nestled somewhere between the aquamarine swimming pools.
