riddle

puzzle

1. Countable

   A question or statement that is intentionally phrased in a puzzling or ambiguous manner, requiring ingenuity to solve or understand, often used as a game.

   • The children enjoyed asking each other riddles.

   • What's the answer to this riddle?

   • She came up with a very clever riddle.

problem

1. CountableUsually singular

   Something that is perplexing or difficult to understand or explain; a problem that is hard to solve.

   • He determined to solve the riddle.

   • This riddle has baffled scientists for years.

   • Many aspects of her life remain a riddle.

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1. Transitive

   To make many holes in something, especially with bullets or other projectiles.

   • The machine gun fire riddled the car with bullets.

   • The bullets riddled the wooden door.

   • The hailstones riddled the roof.

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