Counting will get you nowhere. Try a little combinatorics instead. By Kenneth Chang A couple of weeks ago, I wrote about a viral math problem — 8÷2(2+2) = ? — that drew the disdain of many ...

Brain teasers come in various shapes and forms, each designed to test our problem-solving skills. Whether it's counting interlinked geometric shapes or solving optical illusions, these puzzles keep ...

Everyone loves a good puzzle, whether you're a Wordle fanatic or addicted to Connections. But this new brain teaser tests your observation skills rather than your knowledge of words, and 80 per cent ...

Logical reasoning IQ-based puzzles test your ability to analyse patterns, deduce relationships, and apply rules to reach correct conclusions. They include sequences, syllogisms, matrix problems, ...

Introduction Do you ever use math as a tool to solve interesting problems? In the 1970s math was often taught with simple worksheets. One teacher was looking for a way to help his students have more ...

What is the brain teaser all about? In this brain teaser, there are four triangles, three with a number inside. The sides of each triangle have different numbers, and inside the triangle is another ...