Some of the most satisfying number puzzles require little mathematical know-how. In fact, cracking the one below calls for thinking that is quite nonmathematical. I don’t know where or when I first ...

A number sequence has gone viral on the internet this week, reading: 2, 6, 12, 20, 30, ?. At first glance, it looks easy, but once people start solving it, they realize spotting the pattern is not so ...

Word sequence puzzles constitute fascinating (and fun) experiments in associative thinking—that is, experiments in how we make semantic, conceptual, or formal connections among the words in a set.

IQ tests are a great way to test the intelligence of an individual. By challenging your mind, these puzzles improve your logical thinking, strengthen your pattern recognition, enhance your memory, and ...

Can you infer the simple rule behind a number sequence that spikes up and down like the beating of a heart? Our Insights problem this month is based on a sequence of integers which comes from Neil ...

Math Puzzle: Only intelligent minds can solve this math puzzle by finding the missing value in 17 seconds. Are you one of them? Try now! A math puzzle is a type of brain teaser that tests the reader's ...

This maths puzzle is easier than it looks – you just need to look out for one small detail. Maths is an important part of our ...

The numbers listed above are not in base 10, also known as the decimal system. Show puzzle solution The terms of the sequence all represent the decimal (base 10 ...