I am not alive, yet I can grow. I don’t have lungs, but I need air. What am I?

Category: Brain Teasers · Difficulty: medium

Hint: Think about something that consumes fuel.

Answer

A fire.

Explanation

Fire needs oxygen to burn and can spread (grow) but is not a living organism.

This is a medium brain teasers riddle — a moderate challenge for most people. The answer is A fire..

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