I am not alive, but I can grow; I don’t have lungs, but I need air; I don’t have a mouth, but water kills me. What am I?
Category: Brain · Difficulty: hard
Hint: Think about something that consumes resources to exist.
Answer
A flame
Explanation
Fire is a chemical reaction that grows with fuel, requires oxygen, and is extinguished by water.
This is a hard brain riddle — a tricky one that takes a little thought. The answer is A flame.
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