A brain teaser challenge is a type of IQ test that mostly involves solving a puzzle, cracking a code, finding a hidden object or mistake, or detecting the fault in the image. Brain teaser puzzles test ...

Tristan has an inelastic red rope measuring exactly 12 units in length. On a smooth flat surface, he carefully forms the rope into a perfect sine curve. Find the amplitude a of the sine wave he formed ...

A Korean mathematician has won international recognition for solving a geometry puzzle that had resisted proof for nearly six decades. US magazine Scientific American named the research by Baek ...

In case you've faced some hurdles solving the clue, Make art, say, we've got the answer for you. Crossword puzzles offer a fantastic opportunity to engage your mind, enjoy leisure time, and test your ...

Francis Duah does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Rocky Point High School math teacher Jay Rand likes to challenge his students with a classic head-scratcher on the first day of class: Sum up the digits from 1 to 100, without counting. But first, he ...

Nahda Nabiilah is a writer and editor from Indonesia. She has always loved writing and playing games, so one day she decided to combine the two. Most of the time, writing gaming guides is a blast for ...

The hour, minute and second hands of this clock are all the same length and move smoothly in a circle. The dial contains hour and minute markers, but the numbers are missing. Therefore, it’s ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Once upon a time, four queens known as the queens of blue, red, green and pink were locked in a bitter feud. The monarchs lived on four islands, all the same size, yet each with its own distinctive ...