It might not seem like there's enough information to solve these logic puzzles—but that's part of the fun!

Puzzles saved my sanity during the pandemic—and I believe they can save the world. Perhaps that sounds like a rationalization from a puzzle addict trying to justify the thousands of hours I’ve spent ...

Why should we care about problem solving activities for high school students? What’s the fastest way to get to and from work? How can I complete a task more efficiently? What should I have for lunch ...

If there are nine people in a room and every person shakes hands exactly once with each of the other people, how many handshakes will there be? How can you prove your answer is correct using a model ...