I am not alive, yet I grow; I don't have lungs, but I need air; I don't have a mouth, but I need water. What am I?
Category: Knowledge · Difficulty: expert
Hint: I am often associated with heat and light.
Answer
Flame
Explanation
Fire is a chemical reaction that produces heat and light, requiring fuel, oxygen, and heat to exist.
This is a expert knowledge riddle — one of the harder riddles here. The answer is Flame.
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