optical illusion

What number do you see when you look at this black and white striped picture?

What if I told you that for $24 you can take inches off of your waist instantly?

The internet is in a heated debate right now.

Since it's hurting my brain, it's gotta hurt yours too!

Some people see it right away. For others, it's not so easy.

Or is your mind just playing tricks on ya?!

This cat does not know what to do when it comes face to face with a piece of parchment with an optical illusion.