THIS mind-boggling brainteaser has even the most professional puzzlers scratching their heads in pursuit of the answer.
If you can solve it in less than five seconds then you might have a really high IQ.
The picture shows a dog strolling along a jetty above some crystal clear water.
He's tied to one of four ropes and it's your task to find out which one.
Have you found the answer yet? The clock is ticking.
Here's a hint, zoom in and try to line up the rope the dog is attached to with one of the ropes.
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And don't fret if you didn't manage to find the ticket as this is one of our most tricky puzzles.
This is because the image confuses the eyes.
Still no luck? Don't worry we have included the answer below - along with some more tricky brainteasers to try.
Brainteasers are purposefully designed to trick our vision and can be used as simple determiners of intelligence.
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They are widely regarded as helping improve our attention spans, concentration, and overall cognitive abilities.
While you scroll why not try some other brainteasers?
Try this puzzle and find the heart hidden among the elephants?
Or, give this one a try and spot the cheeky chick hiding among the ducks.
Also, you could be crowned with perfect 20/20 vision if you can spot the three rabbits hiding in a tree in this illusion in under 15 seconds.
If you want to try your luck at another optical illusion, then have a go at spotting the two hidden puppies in the dark park.
Alternatively, you can also try finding the hidden monkey hiding in this image before the zoo closes for the night.
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Or, you can have a go at figuring out the hidden message in this band’s cover art that has confused fans for years.
Below you will find the answer to the dog puzzle as well as some more challenges to try.