Ah, math. Take an easy problem we all studied in our teens, scale it up by just a couple of steps, and suddenly you’re facing ...

Explore daily insights on the USA TODAY crossword puzzle by Sally Hoelscher. Uncover expert takes and answers in our crossword blog.

A popular online math puzzle involves finding a missing number in triangles by using a simple addition rule. Engaging with ...

Brain teasers come in various shapes and forms, each designed to test our problem-solving skills. Whether it's counting ...

Once you've tracked down all the Sanctum Keys, your puzzle-solving down in the Inner Sanctum isn't quite finished. Now, you ...

A polynomial is a type of algebraic equation that involves variables raised to a non-negative power — for example, x² + 5x + ...

Many of us know older people “rattling around” a four- or five-bedroom home that a decade ago was a busy place full of noise and bustle. Now, with children gone to pursue their own lives, the ...

We all have times when we're shouldering the burden of a problem we can't solve right away. For example, you might receive a stressful letter on a Friday that requires calling a government office ...