Everyone can see the penguins – but only those with high IQ & 20/20 vision can find the sneaky crow in 7 seconds

ONLY those with hawk eyes can spot the sneaky crow in just seven seconds in this tricky brain teaser.

The penguins catch your eyes straight away in this optical illusion, but there is another bird lurking somewhere in the picture.

Can you spot a sneaky crow hiding among penguins?

You may have the perfect vision if you can find the crow hidden among the penguins right on time.

This newest illusion is made to trick your brain but it is also a test for your IQ.

Natural optical illusions are intriguing because they make us rethink how we perceive our environment.

It also provides significant understanding of the functioning of the human brain.

Many tests that show how various brain regions react to optical illusions have been developed by researchers who have been studying the effects of optical illusions on the human brain for years.

By giving your brain a little workout, practising optical illusions on a regular basis has substantial advantages, such as enhancing your ability to focus and observe details.

Look at the image carefully and concentrate to finish this task quick as the clock is ticking.

It may be challenging, but there are great benefits for your brain health if you continue solving puzzles.

Why not keep practising with other optical illusions we have?

Try finding a real sausage in this mind-boggling image of sausage dogs.

Or, prove you have a 20/20 vision with solving this illusion of a grumpy old man.

Your goal is to find his sleeping wife in just 11 seconds.

And test your IQ with another brain teaser with penguins where you have to find three hidden cats hiding among them.

Lastly, everyone can see Santa and snowman in this illusion but only the most observant will spot the bear hiding among the reindeer.

A lone bear has gotten himself lost in a crowd of Santa’s reindeer, and you have to find him.

Can you spot a bear hiding amongst the reindeers?Facebook /@thedudolf

Back to our penguin challenge, have you managed to solve it on time?

Don’t be disheartened if you couldn’t – there’s always another chance.

You can keep trying your luck and skill with many of optical illusions at the end of the page.

And if you want to check your answer, it is revealed just below.

Here’s the sneaky crow!

Find 10 hidden objects and a polar bear in this busy winter scene

The scattered objects are highlighted and the polar bear is behind a tree

You may have a 20/20 vision if you can spot three pinwheels among the fireworks

One of the pinwheels is hidden on the left of the image, while the other two are towards the top right

A tricky brainteaser tasks puzzlers with spotting a mouse hiding among squirrels

The mouse has round ears and is sitting smiling toward the top of the brainteaser