According to experts, only those with an IQ of 120 or above can see the 18 triangles apparently visible in this image.
The picture has had many social media users baffled as they struggle to identify all of the three-sided shapes
But some users claim to have found the puzzle easy – and bragged on social media about the speed with which they solved it.
One man claimed it took him “under 12 seconds”, and helpfully shared an image revealing where all of the 18 triangles are.
Another user went one step further, and identified 24 triangles.
She shared a photo of her workings out to prove that she really had found that many.
And another man did the same after finding 24 triangles too – using letter codes to identify every triangle he found.
Another brainteaser swept the web after testing how well user’s brains processed words.
The quiz, by Playbuzz, asks users to read sentences and identify a particular highlighted word.
It starts off simply, but gets increasingly more difficult as the quiz continues.
Words are presented backwards, upside down and in a confusing ‘double’.
Those who manage to complete all of the brainteasers with no mistakes are told they are a “reading genius”.
Viral maths puzzle 9 – 3 ÷ 1-3 1
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Another optical illusion baffling the internet asked users to try and spot Rudolf among herds of reindeer.
He has a bright red shiny nose, so he should be simple to find.
But pesky Rudolph is hiding in this Christmas-themed brainteaser.
Published on Playbuzz, the tricky optical illusion will have you squinting to try and find the famous festive character.
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