An optical illusion or a brain teaser is a type of visual puzzle that creates a misleading effect on our brain and leads to our brain's interpretations in the wrong way, and misleads our perception.

Guest post by Jason Major, a PhD candidate in Psychology at the University of Edinburgh. He is from Ottawa, Canada. About a month ago, Sanjay Srivastava, a psychologist at the University of Oregon, ...

President Donald Trump admitted that he found a test he took to screen for possible early signs of cognitive decline “very ...

An optical illusion brain teaser IQ test is a test that involves the perception of images that deceive both the eye and the brain. To make use of your crystal-clear gaze is to look attentively, to ...