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These 15 simple riddles are designed to make you search for a hidden trick in plain wording. Try each one before revealing its answer—and take “ruin your brain chemistry” as a joke, not a scientific claim.
15 simple riddles to test your assumptions
Read each question, pause to guess, then open the answer. The answers below are the intended solutions to the riddles in Leandro Beroldo’s Den of Geek article, published October 8, 2026.
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What has to be broken before you can use it?
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An egg.
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What gets wetter the more it dries?
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A towel.
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What has many keys but cannot open a single lock?
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A piano.
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What has a head and a tail but no body?
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A coin.
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What can you catch but never throw?
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A cold.
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What has one eye but cannot see?
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A needle.
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What has hands but cannot clap?
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A clock.
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What can travel around the world while staying in one corner?
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A postage stamp.
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What has a neck but no head?
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A bottle.
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What comes down but never goes up?
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Rain.
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What gets bigger the more you take away from it?
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A hole.
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What has four legs in the morning, two at noon, and three in the evening?
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A human: crawling as a baby, walking as an adult, and possibly using a cane later in life.
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What belongs to you but other people use it more than you do?
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Your name.
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What has cities, roads, and rivers but no people, cars, or water?
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A map.
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What is always in front of you but can’t be seen?
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The future.
Why these riddles can feel trickier than they are
Several answers depend on a familiar word having more than one meaning. A piano has musical “keys,” a needle has an “eye,” a clock has “hands,” and a bottle has a “neck.” The wording encourages a literal interpretation, while the answer uses a different sense of the word.
Other riddles point to ordinary objects or ideas: an egg, towel, coin, postage stamp, hole, map, or future. The apparent difficulty often comes from assuming the question must hide a complicated trick. Once the intended meaning clicks, the answer can seem obvious in hindsight.
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Does solving them really affect your brain chemistry?
“Ruin your brain chemistry” is playful wording, not an established scientific effect. The cited entertainment article reports no measurable brain-chemistry change, cognitive benefit, or expert finding from solving these riddles. Their appeal here is the moment of puzzlement and recognition, not a demonstrated medical or neuroscience outcome.
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