ONLY the most professional puzzlers can solve this mind-boggling brain teaser.

If you can spot the hidden snake among the tortoises in less than eight seconds then you may have a high IQ and 20/20 vision.

The image shows some happy tortoises enjoying a social gathering – but there is a different type of creature somewhere in the scene.

Have you found him yet?

Here’s a hint. The serpent looks very similar to the tortoises except he’s missing a shell!

And, don’t fret if you haven’t found him as this puzzle is tricky as shell.

This is because the image is so crowded it’s difficult for the eyes to scan for differences.

Meanwhile, why not try some more difficult brainteasers while you scroll.

Test your visual prowess with this Christmas conundrum by looking for the hidden robin.

Or, give this one a try and spot Rudolf among Santa’s other reindeer.

And don’t stop practising these tricky tasks as, according to vanishing ink magic, they have positive affects on your brain health.

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It says: “Brain teasers will stimulate your cognitive ability and also help focus by making you concentrate on one task as a time.”

Below you will find the answer to the puzzle above as well as some more challenging brainteasers to try.

The aim of the game is to find the old man’s sleeping wife in just 11 seconds – if you can you might have 20/20 vision.

The image shows a grumpy old man having an afternoon nap.

At first he appears to be alone, but if you look closer you might be able to make out someone else in the picture.