It's not only IQ tests that can prove your intelligence. Optical illusions and brain teasers are known to challenge our minds and force us to think outside the box.
And if you manage a really tricky one, you can apparently brag to your friends that you're really clever.
Even if you don't manage it, you can rest easy knowing, if done regularly, they can help improve your cognitive function, improve memory, and sharpen your focus.
It's also just fun to challenge yourself, with the added bonus of being able to impress your friends and family if you complete it.
So are you ready to try one out? In this new brain teaser, you are challenged to find the number two among rows of numbers, separated into red, yellow, and blue areas.
Sounds easy right? What makes it even more tricky is that you have to find the correct number in the correct grid in just eight seconds.
According to JagranJosh, who shared the puzzle, only those who are 'highly intelligent' are able to spot the number within the timeframe.
The number two is hiding among the other numbers, making it difficult to spot at first glance, and only 'highly attentive individuals' with 'razor-sharp eyesight' will be able to spot it within the time limit.
Are you struggling to find it? Try looking at all the areas of the image carefully, and spend a bit more time than you think you need. It's probably hiding in plain sight.
If you didn't manage to spot it within the time limit, don't worry. The colour of the grid and the arrangement of the numbers make it somewhat hard to spot. See the answer below.
The number two is located in the red grid, in the fourth column and third row, as shown below.
Keep practicing and you'll definitely improve. Why not take on another challenge?
Apparently, only 20 per cent of people can find the screwdriver and hammer hidden among the cleaning supplies in this brain teaser.
Another tricky puzzle challenges you to find all the triangles hidden within the image – and it's harder than it looks.
If you fancy another, why not try finding the hidden word in this word search puzzle? Your challenge is to find it within nine seconds.
Did you manage to find the number two? Let us know in the comment section below.