Picture puzzles IQ tests are excellent tools for testing a reader's critical thinking and problem-solving skills. 

These challenges have the potential to boost intelligence and improve concentration.

Are you intelligent enough to find the mistake in this picture puzzle in 5 seconds?

Source: Bright Side

A boy can be seen reading a book and sitting on a sofa with his pet cat by his side.

Did you notice anything unusual about the picture?

Well, there is one mistake.

Can you find it in 5 seconds?

Test your attention to detail with this brain teaser puzzle.

Your time starts now!

Look at the image and study it carefully.

Have you spotted the mistake?

Hurry up; time is running out.

Study the image attentively; you might be very close to spotting the mistake.

And...

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Time’s up.

How many of you have spotted the mistake?

Congratulations to those readers who have spotted the mistake in the picture.

Those who couldn’t can scroll below for the solution.