The Kanizsa Triangle is just one of those optical illusions that keeps you guessing, long after you think you’ve figured it out. At first glance, it seems simple enough, its a triangle ...

Some illusions are simple, like pictures that seem to move when we look at them for a while. Others are more complex, making shapes appear bigger or smaller than they actually are. Optical ...

A visual puzzle challenges readers to find five guards wearing triangle masks among a crowd of identically uniformed guards with various mask shapes. The puzzle tests observation skills and the ...