You've got eagle-eyed vision if you can spot random number among OOOs

Find out just how sharp your vision is with this deceptively difficult brainteaser that leaves most Brits utterly stumped.

If you're looking to spice up your gruelling morning commute, or desperately need something to keep the kids distracted on a long car journey - puzzles like this are a lifesaver. Butbrainteasers aren't just a boredom buster, and have actually been linked to improving one's attention span and concentration levels.

For this tricky puzzle, you'll need the eyes of an eagle and rapid reaction skills to solve it within the strict time limit. Fail, and it might be a sign you need to book an appointment at Specsavers...

READ MORE: You've got a high IQ if you can spot hiding elephant in 15 seconds

The image above depicts a sea of OOOs amongst an ombre background of orange and yellow. But, hiding in plain sight is actually a rogue number - and you need to find it in just 12 seconds to prove you have laser-sharp vision. So, set your timer and get searching!

Aspreviously reported, your eyes will naturally gravitate towards all the OOOs rather than immediately identifying the numbers - but stay focused, as time is of the essence. Remember, you've only got 12 seconds, so use all of the attention to detail and pattern recognition you can muster.

If you're staring at the image and don't know where to begin, perhaps a hint might help. Instead of squandering time scanning the top of the picture, let your gaze drift towards the bottom of the image.

Still feeling stumped, or think you've finally cracked it? Scroll down to the bottom of the article to find the answer.

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If you solved that brainteaser without even breaking a sweat, it's time to take things up a notch. Below is a mind-boggling riddle that's making fully-grown adults want to pull out their hair - and you've only got 15 seconds to solve it. Once the timer is up, you can check your answer here.

"Mrs. Watt has 5 children. The oldest four children's names are Lala, Lele, Lili, and Lolo," the riddle reads. "What is the name of the youngest child - why do people laugh at her name?"

Many people guessed the child's name is Lulu, because the first four children have the same name with different vowels - and 'U' is the last one available. However, this is not the right answer. Feeling stuck? Thought so!

Up for another mental workout? Check out our collection of tricky brainteasers, riddles, and puzzles here. Or, learn more about your hidden personality traits with these mind-boggling optical illusions.

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