When you shine a flashlight into a glass of water, the beam bends. That simple observation, familiar since ancient times, ...

In 2024, Gary, the father of a first grader was forced to ask Reddit for help with his son's homework, which asked students ...

Taking part in such optical illusion challenges on a regular basis can be a healthy exercise for our visual system, as it makes people aware of their observational skills and the ability to focus on ...

A puzzle asked what came once in a minute, twice in a moment, but never in a thousand years, and it kept readers guessing until the answer was revealed.