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 ...

Before reading this guide, it may be helpful to read the guides from Module 1 on the properties of angles and the properties of 2D shapes. The sum of the angles inside any polygon can be found by ...

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 ...

Do you think you have sharp eyes and an even sharper brain? Here’s a fun challenge that will put your observation and problem-solving skills to the test! Optical illusions are not just fun to look at ...