puzzle

Mathematicians around the world can't agree on which answer is correct: 9 or 1

We tell you how a simple arithmetic example divided mathematicians into two camps.

Timur Khomichev mathematics a riddle arithmetic example People and Events 27 August 2024

What puzzles are considered the most difficult in the world: it’s definitely not the Rubik’s cube

The most difficult tasks for developing logic are named - "the problem of recognition", "sum-do-ku" and "Kakuro puzzle".

Igor Zur logic mathematics the most difficult logic problem a riddle Records and anti-records 14 May 2024

How to Become Smarter: Play Video Games – An Unusual But Effective Way

Do you still think that computer games are absolute evil?

Elena Shimanovskaya video games video games benefits how to become smarter methods People and Events 4 April 2024

Just 3.13 seconds: that's how long it took a Californian to solve a Rubik's cube and become a record holder

American speedcuber Max Park has set a new world record for solving a Rubik's cube.

Elena Shimanovskaya record Guinness Book of Records rubik's cube solved rubik's cube Records and anti-records 23 March 2024