If you love a good brain teaser, these 15 riddles are sure to get your gears turning. Some of them will have you scratching your head, like the classic, "What has keys but can't open locks?" (Hint: It's a piano!). Others play with words and logic, such as "I speak without a mouth and hear without ears. I have no body, but I come alive with wind. What am I?" (Answer: An echo). A few riddles will make you rethink what you know, like "The more you take, the more you leave behind. What are they?" (Answer: Footsteps). They're fun, challenging, and perfect for stretching your brain in new ways!

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