A tricky visual puzzle is testing people's observation skills. A cat is hidden in plain sight within a picture of a tree. The ...

Then, in nine seconds, locate the hiding cat. I'll give you a quick hint. The left half of the screen is not where it is. Check once more now to see if you can locate it.

A cat owner from Vermont has left internet users puzzled after sharing a picture of her rag-doll cat sleeping in an odd ...

Optical illusions use light, colour and patterns to cause a viewer to see something that's completely different to reality ...