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Parallel lines
Parallel lines
Barsukov Vladimir/Shutterstock

These lines appear to be angled up or down, but the horizontal lines are actually all parallel. Need proof? Try covering the top and bottom of one line of squares with a piece of paper. No slants to be found!

Spinning seeds
Spinning seeds
iulias/shutterstock

Your eyes will keep jumping to the spinning sunbursts of seeds – even though they’re all staying still.

Hidden message
Hidden message
llliiioiiilll/Shutterstock

Lose your focus a bit (seriously – try to go a little cross-eyed) and you’ll spot a secret message hiding in the black dots. Take a closer look, though, and the words will disappear from sight.

We bet you didn’t know that these famous paintings also had hidden messages.

All about perspective
All about perspective
Iva-Villi/Shutterstock

Can you figure out which of these windows is bigger? Not only are they the exact same size, but their tops and bottoms are also directly in line with each other. Talk about a new perspective.

Innie or outie?
Innie or outie?
De V/Shutterstock

Is the smallest point of this black and white illusion pointing in or sticking out? It’s anyone’s guess.

Disappearing dots
Disappearing dots
©mark/Shutterstock

An oldie but goodie. Your brain thinks there’s a black circle inside each white one – until you focus on that white circle. Then you realise it was never there at all.

Rotating circles
Rotating circles
Eurovector/Shutterstock

When your eyes dart to one seemingly spinning circle, the others around them appear to start rotating. Your eyes don’t know where to look!

Large and small
Large and small
Peter Hermes Furian/Shutterstock

Which blue dot is bigger: the one on the left or the one on the right? Good for you if you guessed the same size! The left just looks smaller compared to the big circles and empty space around it.

If these optical illusions are bending your brain, check out these 44 Mandela Effect examples that will send it even deeper into a loop!

New squares
New squares
Cosid/Shutterstock

At first glance, the four diamonds in this picture pop right out. But look closer – there’s not a single line creating those shapes. The contrast between the black and white makes your brain assume they exist.

Addle your brain some more with 9 of the toughest riddles out there. 

Spinning colours
Spinning colours
Andrey Korshenkov/Shutterstock

Optical illusions like this will leave you dazed and confused. The colours seem to be swirling around, even though it’s a still image.

Long and short
Long and short
Peter Hermes Furian/Shutterstock

Which horizontal line is shorter: the top or the bottom? Trick question – they’re the same size, even though your mind perceives the one with outward wings to be longer.

Hypnotising
Hypnotising
Mark Grenier/Shutterstock

Looks like the background is spinning around a circle, but both are staying completely still.

Moving right along
Moving right along
GUTEN TAG VECTOR/SHUTTERSTOCK

It looks like the background underneath the sphere is moving downward, like a conveyer belt or a slow treadmill. But it’s a completely still image!

Ripple effect
Ripple effect
SKRIPNICHENKO TATIANA/SHUTTERSTOCK

Are you sure the circles in this image aren’t moving? Are you sure they’re not rippling in a wavelike motion? But really – are you positive?

Connected lines
Connected lines
PETER HERMES FURIAN/SHUTTERSTOCK

Which of the two lines on the right side of the grey rectangle connects to the one on the left side? As you can see from the image on the right, it’s the one on the bottom (labelled in blue) – not the one on the top! When you can’t see the whole picture (literally), these optical illusions can seriously throw you for a loop.

Give your brain even more of a workout with this mind-bending logic quiz. 

Wacky squares
Wacky squares
IVA VILLI/SHUTTERSTOCK

Some of these optical illusions make your head spin! In the optical illusion on the left, the red squares look warped and crooked, like something out of a funhouse. But on the right, when the crazy arrangement of black and white lines is faded to almost nothing, you can see that the red squares are actually as straight and square as can be.

Squiggly squares
Squiggly squares
PICOSTUDIO/SHUTTERSTOCK

The lines that make up these squares are completely straight – yes, all of them, even the ones in the middle! The placement of the miniature squares-within-the-squares warps the lines and makes them look curved.

Bending lines
Bending lines
COURTESY LENSTORE

These red lines might look curved outward – but they’re completely straight! This and the next seven before-and-after images are courtesy of Lenstore, inspired by their mind-boggling “In Perspective” project showcasing optical illusions like these.

How many colours?
How many colours?
COURTESY LENSTORE

Can you figure out how many colours are in this image in total? Did you guess four? Turns out it’s only three! The square in the upper right of this image looks like it contains blue and pink stripes; the one in the lower left seems to have green and orange ones. But, believe it or not, the “blue” and “green” are actually the exact same colour! (Click the “reveal” button in the link!)

Grey area
Grey area
COURTESY LENSTORE

Which of the labelled squares is lighter in colour: A or B? This one’s quite the trick: They’re actually the same colour! It’s just the shadow of the green cylinder that makes them look like different colours.

Try these 21 brain games guaranteed to boost your brain power. 

Hidden arch
Hidden arch
COURTESY LENSTORE

Under the post, are the lines of this archway meeting in the middle? They sure are! The post makes the lines look mismatched, but sure enough, they connect! Click “reveal” in this link to see the illusion in action.

Standing tall
Standing tall
COURTESY LENSTORE

Which of these monsters charging through the catacombs is taller? More optical illusions that use the background to trick you! Without the backdrop, you can see that these two freaky fellows are exactly the same – including their height.

These 30 amazing facts about your brain will blow your mind. 

Stitched lines
Stitched lines
COURTESY LENSTORE

Are these long diagonal lines parallel? They sure don’t look it, but they are! Removing the smaller “stitch”-like lines shows the truth about this optical illusion.

Tilted towers
Tilted towers
COURTESY LENSTORE

Is one of these leaning towers leaning more than the other? It certainly looks like it, but no! The two images are identical; the way they’re positioned next to each other makes the one on the right look steeper. There are plenty of differences in these mind-boggling “spot the difference” photos, though.

Pair of pears
Pair of pears
COURTESY LENSTORE

Which of these pears is lighter in colour: the one on the left or the one on the right? You’ll see the answer in the next slide!

Neither
Neither
COURTESY LENSTORE

That’s right; these two pears are exactly the same colour!

And if you love optical illusions, you’ll love trying out these brain games that’ll test your inner genius.

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Source: RD.com

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