Mathematics is a "science which requires a great amount of imagination", said the 19th-century Russian maths professor Sofya ...

Spot the hidden number 3 in a 9-second brain teaser optical illusion that tests observation, IQ, and visual perception skills ...

In the world of the internet, brain teasers have become one of the most popular forms of entertainment. They not only provide us with a mental challenge but also engage our thinking in unique ways.

A brain teaser is a short, playful puzzle designed to make your mind stretch and smile. It could be a riddle, a tricky question, a visual illusion, or a logic twist that nudges you to think beyond the ...