A brain teaser on X featuring a 3×3 number grid sparked over 12k views and 300+ comments as users debated the missing number's solution. Brain teasers have long been a favourite among puzzle ...

A brain teaser on X featuring a 3×3 number grid sparked over 12k views and 300+ comments as users debated the missing ...

Many social media users love solving these tricky puzzles, which not only test their skills but also leave them scratching their heads. A tricky maths brain teaser puzzled the internet.( ...

This latest brain teaser was recently shared on X (formerly Twitter) by user @jitendra789789 and it has left many scratching ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.

The square root of 2025 is 45. The divisors of 45 (apart from 45 itself) are 1, 3, 5, 9 and 15. The product of these numbers ...

Think you're a whiz at these puzzles? Get ready to challenge yourself with this optical illusion that's leaving many stumped. The claim? Only geniuses can find the hidden number 6767. Are you up ...

Play this puzzle to see how far the machines have to go. By Dylan Freedman and Cade Metz Produced by Juliana Castro Varón and Umi Syam In 2019, an A.I. researcher, François Chollet, designed a ...

Visual-motor integration is the ability to be able to coordinate fine motor skills and visual-perceptual skills to produce ...

Number lines can help you see where a number is compared to another number. You can create a number line that goes up to any number. You can then look at the part of the number line that's the ...