FREE newsletter is as good as that first pint back at the pub Sometimes optical illusions can have you stumped for days.
And no matter how many times you look at one, you'll always have a different answer to someone else.But that doesn't matter, as illusions depend on what you see.So if you enjoy the confusion, here's an optical illusion which will have you questioning it for hours, or even days.
Posting on the Optics4Kids website, a photo of a red box and sphere is asking users what they see. It said: "Keep your eyes on the dot.
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