Learn how hard the GRE test really is, why getting a good score is challenging, and how its difficulty compares to exams like ...

A movement to help students understand rather than memorize has had sprawling effects, including pushback on teaching methods ...

Long before modern telescopes, early astronomers mapped the heavens with math, myth, and sheer curiosity. This crossword quiz celebrates the minds who first charted the cosmos.

Explore some favorite visual stories of designers, developers and art directors from The Washington Post’s Design, Graphics ...

Puzzle 1: You are given nine gold coins that look identical. You are told that one of them is fake, and that this coin weighs ...

What’s more, doing maths is often a collaborative endeavour – and can be a great source of fun and fulfilment when people ...

Duah: Using puzzles, both at home and in classrooms, can restore the often-forgotten truth that learning happens in ...

We were overwhelmed by the response to our annual Letters to Santa feature, with more than 1,250 letters submitted this year. Due ...