Puzzles

Looking for answers? Go to sciencenews.org/puzzle-answers. We’ll publish science-themed crosswords and math puzzles on alternating months. We’d love to hear your thoughts. Email us at puzzles@sciencenews.org.

  1. Limits of Knowledge Crossword

    Solve our latest interactive crossword. We'll publish science-themed crosswords and math puzzles on alternating months.

    By Sid Sivakumar

  2. Math puzzle: The Lesser Fool

    Solve the math puzzle from our April 2025 issue. In honor of April Fools’ Day, we offer the puzzling case of the Lesser Fool.

    By Ben Orlin

  3. Buried Treasure Crossword

    Solve our latest interactive crossword. We'll publish science-themed crosswords and math puzzles on alternating months.

    By Shannon Rapp and Rebecca Goldstein

  4. Math puzzle: Imagine there’s no zero

    Solve the math puzzle from our February 2025 issue, based on the number system of mathematician James Foster.

    By Ben Orlin

  5. Twisting Words Crossword

    Solve our latest interactive crossword. We'll publish science-themed crosswords and math puzzles on alternating months.

    By Shannon Rapp