Does the cat go down or up?

What is your perception?

Your reply

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Optical illusion is all around us. We can look at each thing differently and we cannot decide what is right. We see something and others see something else. But there is only one correct result.

Your friends are just watching

What numbers do you see?

Does the cat go down or up?

Which line is longer?

What number do you see in the picture?

What number is in the picture?

Can you calculate it?

Can you calculate it?

Who killed the teacher?