If you've ever wanted to put your brain to the ultimate test while undertaking an intriguing task, then you should have a dabble at brain teasers.
While testing someone's personality traits - from the level of their IQ to their creative thinking - brain teasers cleverly stretch a person's brain to think outside of the box.
A newly surfaced puzzle tests the efficiency of someone's eyesight as allegedly only those who have eyes like a hawk can spot the hidden number within the given timeframe.
The task is simple - challengers must attempt to find the number 725 among the 775s within the busy image.
While the task is relatively straightforward, it's not as easy to spot the missing number.
If you're struggling, we advise you to scan each row quickly while keeping an eye directly on the middle number of the three-digit sequence.
Don't fret if you weren't able to spot the number 725 as we've labelled it clearly for you below.
Scroll down below for the answer...
Were you able to find the number 725? We'll forgive you if you didn't!
Are you a fan of brain teasers? If so, then why don't you try giving a few more to try?
If you've ever questioned whether you have high IQ then this tricky brain teaser puts your skills to the ultimate test if you can find all seven items hidden in this photo within 60 seconds.
Alternatively, only a true brain whizz can spot all four mistakes within this busy scuba diving scene.
On the other hand, if you're up for a greater challenge and wish to determine whether you're the ultimate puzzle genius then try spotting all triangles in this tricky brain teaser.
Do you have a story? We want to hear it! Get in touch at grace.hoffman@reachplc.com