Brain teaser brain teasers are a thrilling mode of challenging one's mind, sharpening problem-solving skills, and improving ...

This optical illusion challenges your ability to notice even the tiniest details. Only those with the most observant eyes ...

Artificial intelligences fail to identify optical illusions in images created by other AIs – so these images could form the ...

Think you have perfect vision? Test your skills with this optical illusion puzzle. Hidden within the image are three faces that only those with 20/20 vision will be able to spot. Challenge yourself to ...

Temperamental' stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant ...

Recently, an optical illusion shared on Instagram has gone viral, leaving many users puzzled. The image cleverly conceals a person within the background using a carefully matched colour pattern. At ...

Our brain and eyes can play tricks on us—not least when it comes to the expanding hole illusion. A new computational model ...

AS a delusional youngster, I often dreamed I’d run with royalty one day. Well Prince William remained aloof but I did fulfil ...

For those that love optical illusions – and a good explanation for the mind-bending properties of them – finding one you haven't seen before is a real treat. And that's just happened with this (I ...

This optical illusion challenges your observation skills by hiding a "55" among a pattern of "33" pairs. The brain's pattern ...