To check your cognitive skill and IQ level, there are many ways, but among these, brain teasers are the best and fun game to test your logical and thinking skills with your observation level. These ...

Optical illusions to find the hidden objects and numbers are effective at revealing your brainpower and visual IQ. How sharp ...

A brain teaser challenge is a type of IQ test that mostly involves solving a puzzle, cracking a code, finding a hidden object ...

A Brain teaser is a type of puzzle which requires thinking and logical skills. In these types of puzzles, even math riddles ...

It’s no secret that Ars readers like to accumulate information and knowledge, not unlike the Borg. Altruistic Borg, of course. Would it be fun (and accidentally educational) to drop the occasional pop ...