This puzzle originally appeared in Spektrum der Wissenschaft and was reproduced with permission. It was translated from the ...

Jeff Smith's Math Puzzle for April 3, 2026 - Logarithms: Friend or frenemy? Was Napier napping? The post Math Puzzle for ...

A math puzzle is a type of brain teaser that tests the reader's critical thinking and problem-solving skills by challenging ...

A functioning Gizmo would never lie and call a good Gizmo broken, so if one declares the other to be malfunctioning, they can ...

You and a friend have arranged to meet at a popular downtown mall between 3 p.m. and 4 p.m. one afternoon. However, you neglected to specify a time within that one-hour window. Therefore, each of you ...

In 2023, I posed 23 challenges as part of the Gizmodo Monday Puzzle series. Some require a bit of math, and others a light familiarity with physics; but most can be solved through logic and creative ...

Every few months, a math problem goes viral on social media. Disappointingly often, it lacks mathematical meat. It seems over half of them boil down to the order of operations. Some tweet will get ...