YOU might have a perfect 20/20 vision and a high IQ if you can find the hidden animal in this donkey picture.
Only a few people with great observational skills can crack this mind-bending optical illusion in less than six seconds.
While it may seem like a normal picture, it is a difficult optical illusion that has left many users baffled trying to solve it.
But the goal of the challenge is simple: you just need to find a second animal other than the donkey.
And you just have six seconds to do it.
So buckle up, set your timers and test your puzzle-solving skills.
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But did you know solving such challenges can improve your intelligence?
Optical illusions are visuals designed to trick our minds and can be a simple IQ test.
They test our understanding of reality, depth and perspective as we try to understand what's in front of us.
Studies have shown that people who regularly challenge themselves with optical illusions and puzzles improve their problem-solving skills, concentration and attention.
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Benefits of Optical illusions
RESEARCHERS have developed many tests that show how various brain regions react to optical illusions.
They are not only entertaining, but they also shed light on how our brains interpret visual data.
By giving your brain a little workout regularly, you enhance your ability to focus and observe details.
Studies have shown that people who regularly challenge themselves with optical illusions and puzzles improve their problem-solving skills, concentration and attention.
Improved concentration and attention span, in turn, can help prevent cognitive decline in older age.
Psychologists at The University of Glasgow found that staring at an optical illusion can improve eyesight by allowing you to see small print.
So before you start with this one, try and see if you can find the cheeky ghost trying to blend in within this party scene in a super quick time.
If you can then you have the watchful eyes of a clever spirit but beware they are very good at keeping secrets.
You can also try and spot all five differences between the two identical pictures.
Or have a go at finding the sausage that definitely shouldn't be in with the fruit and vegetables.
Back to our challenge - are you able to solve the mind-bending challenge?
If you didn't see it, look again carefully.
Here is a hint for you: observe the mouth of the donkey carefully and you will find your answer.
Still no luck?
If you are scratching your head trying to solve it, here is what you need to do.
Just put your gaze on the mouth and nose of the donkey - and you will see the face of a seal.
You can also scroll to the bottom of the page to see the solution.
Cheers if you were able to solve this twisted challenge in less than six seconds - you are a genius with a perfect 20/20 vision.
If you found this puzzle too easy, try to find the hidden butterfly in this vintage scene.
Try and see if you can find the hidden treasure chest within this party of pirates before they get their hooks on the gold inside.
You might just have a high IQ if you can find the hidden elephant in this optical illusion in eight seconds.
But be warned it's a super tricky one.
Or if you're really up to it have a go at figuring out which rope this dog is attached to before he walks off the pier.
If you love solving such puzzles we have more such challenges for you at the bottom of the page - scroll down to find them.