THINK you’ve got yourself all figured out? This clever optical illusion might just make you reconsider. The tricky brain ...

This clever optical illusion might just make you reconsider. The tricky brain teaser shows what appears to be a face in sea of blue. If you saw the upside-down princess, it might mean you're a bit ...

face looks fine when the whole face is upside-down. It's worth pointing out that the illusion may not be specifically to do with faces, but with things that we are used to seeing one way up.

In this image which is upside down, there is a "24" hidden somewhere. It is not easy to track the 24 in this image. An optical illusion is a fascinating visual phenomenon where the eyes perceive ...