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Aug 21. 2025
1250
1575Weightless yet visible, I lighten a bucket when added. Not light, gas, liquid, or stone, I exist in absence. What am I?
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Reveal 12501575Show HintRevealAug 21. 2025
12501575Weightless yet visible, I lighten a bucket when added. Not light, gas, liquid, or stone, I exist in absence. What am I?
Show HintReveal