I am black when I am clean and white when I am dirty?

I am black when I am clean and white when I am dirty?

Other Difficult Riddles

It's got twists and turns, but has no curves. Twist it to fix it, turn it to ruin it. What is it?

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I build up castles. I tear down mountains. I make some men blind. I help others to see.

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They made me a mouth, but didn't give me breath. Water gives me life, but the sun brings me death.

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What is pronounced like one letter, written with three letters. And belongs to all animals?

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What do people want the least on their hands?

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Riddle of the Day

Jun 17, 2026

I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.

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