THIS mind-boggling brain teaser has even the most eagle eyed puzzlers scratching their heads trying to find the answer.

The task is to find the five subtle differences between the two pictures in under eight seconds, if you can your focus is sharper than most.

The picture is deliberately designed to be distracting for your eyes and make it harder to find the differences.

The image shows four school children enjoying some drawing, but although the two images appear the same, there are some details which differ.

If you can spot them in the time limit you’re top of the class!

Have you found them yet?

If not, here’s a clue, each child has one difference except one that has two.

Still no luck? Don’t be disheartened as this is one of our trickiest puzzles.

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And don’t give up attempting these brain teasers as they can improve your memory, problem solving abilities and focus.

According to ZenBuisness: “These visual puzzles can give you a good mental workout that can, in turn, help you think more efficiently and solve problems more easily.”

Meanwhile why not try some other challenging brain teasers while you scroll?

Try this festive themed ghost puzzle and test your IQ.

Or give this riddle that had the internet baffled a go.

The aim is to crack the code to the padlock using the hints provided.

The answers to the classroom differences are found below.