You’re never too old to learn something new. People are losing their minds over how simple — yet tricky — an elementary school-level math equation posted on X (formerly Twitter) is. Over the weekend, ...

An unusual attachment stretched across more than a decade. How did a student’s long‑term obsession with a teacher shape their life and lead to unsettling consequences? Which country is the largest ...

Mathematica needs you! Add, subtract, divide and multiply your way to victory. Meet the Karate Cats and practice spelling, grammar and punctuation as you chop, kick and smash the challenges. Join ...