If the cards shown here are rearranged to form four new poker hands of five cards each, what is the lowest possible winning ...

Take the pressure off of problem-solving with engaging thinking games that encourage students to work together to find ...

Subscribe to Scientific American to learn and share the most exciting discoveries, innovations and ideas shaping our world today.

Math is not everyone’s favorite, understandably. Hours of math homework and difficult equations can make anyone sour on the subject. But when math problems are outside of a school setting, there’s no ...

I’ve been out of school for decades, and I don’t spend my days solving equations (I’m more of a word person). Still, I like to think I have a solid grip on basic math: I can usually gauge whether a ...

Jeff Smith's Math Puzzle for January 23, 2026 - Ruminants and ungulates graze on the bucolic Pampas. The post Math Puzzle for ...

The hour, minute and second hands of this clock are all the same length and move smoothly in a circle. The dial contains hour and minute markers, but the numbers are missing. Therefore, it’s ...

Randomly scramble the digits 0, 1, 2, 3, 4, 5 and 6 to form a seven-digit number (or a six-digit number if the leading digit is 0). Rank the following events in order ...