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Last three!

impossible triangle illusion

Impossible Triangle

arrows are same length

Which is longest?
Actually, the Vertical lines are both the same length.

reversing staircase illusion

Stare at the Reversing Staircase Illusion until it changes to a different staircase.

question marks
Other stuff you might like ...
Quizzes!
How sharp is your mind? Try out these fun quizzes and see.
Go!
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