HOW good is your perception of colour and size?
A mind-boggling quiz is baffling the web as it asks viewers to solve a series of tricky questions of perception.
Each image contains only slight differences in size and colour and the puzzle claims only a small percentage of people have the ability to solve all of the questions.
So can you figure it all out?
Take the quiz below.
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BABY IS BOSS
Meet the ‘gentle parents’ who ask their kids permission to touch them and never punish them when naughty
This will floor you
This is what the black diamonds on your tape measure are for
Nippy New Year!
Titillating photos show Page 3 models ringing in the New Year with strategically-placed tinsel and champagne
Wu-Tang Clan rapper chopped off his own penis with a kitchen knife… but reveals he still has sex
Woman with world’s largest natural breasts on how her 102ZZZ-cup boobs have netted her MILLIONS
If you’re in the mood for another test, we recently shared another fiendish vision quiz which challenges you to spot the odd shape out.
Of course, these aren’t the only brain teasers to baffle viewers. See if you can spot a panda among a sea of skulls.
And another puzzler asks you to spot the one 50 pence piece where The Queen is winking.