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

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(And adults, of course!) These math puzzles test your brain and critical-thinking skills and provide some constructive, educational fun. Math riddles and puzzles come in plenty of different varieties.

Show puzzle solution For simplicity, let’s assume that the small squares have a side length of 1. The figure consists of 25 small squares, so the full final square must have a side length of 5.

Show puzzle solution The commuter has walked for 55 minutes before his wife picks him up. Because they arrive home 10 minutes earlier than usual, this means that his wife has chopped 10 minutes ...

Rapp is a research administrator and former research biologist who has created puzzles for the New York Times, Los Angeles Times and other publications.

Animal behavior research is particularly relevant to the study of human behavior when it comes to the preservation of a species, or how an animal’s behavior helps it survive. The behavior of ...

Jan. 19, 2025 — Ecologists have identified significant ecological risks associated with the release of hybrid groupers into Hong Kong's coastal waters, a practice ...

This puzzle has sparked discussions, with netizens sharing their answers and reasoning. It's a great opportunity for math enthusiasts to flex their problem-solving skills. This isn’t the first ...

President Trump immediately made major policy moves after taking office. Follow an issue that matters to you the most, and then share your voice. By Michael Gonchar and Natalie Proulx Donald J ...

Riddles for kids are more than just a fun way to pass the time; they're a great tool for building critical thinking skills. By solving riddles and word puzzles, children learn to think creatively, ...