Now another strange visual puzzle is setting social media alight after causing viewers to suffer an "existential crisis" when they can't see 12 dots all at the same time. The puzzle was uploaded ...

In the picture above, the clock reads 12:59 (at least I think it does). More interesting than the aesthetics is the mechanism. The dots flop over like the numbers on those old digital flip-clocks ...

Twelve black dots dance about this grid. They never actually move or vanish, but no matter how fast you twitch your eyes back and forth, you can’t seem to trap them all in your gaze at once.

These disappearing dots are driving the internet crazy! Game developer Will Kerslake shared an optical illusion that features 12 black dots that are impossible to spot simultaneously.

If you’re brain is feeling a little fuzzy and you’re struggling to get out of weekend mode, this weird optical illusion probably won’t help. This head-scratching picture is, believe it or ...