These optical illusions can be as tricky as they are rewarding. Ready to test yourself? Set a timer and see if you can find that elusive black cat. Back to our Halloween scene: if you’re still ...

Optical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling around the page to images that stay with you even after you look away.

An curved arrow pointing right. If you're struggling to come up with an affordable, last minute Halloween costume, we've got you covered! This "magic carpet" genie outfit is not only a fun optical ...