Answer:
Small, containing light, You'll need it in the dark, It will provide that spark, and shine into the night. Will light up any pyre, 'Cause it can help make a fire.
What gets bigger the more you take away from it?
What cleans as it gets dirty only to get clean the more you use it?
What starts with a T ends with a T and is full of T?
The profession of Jimi Hendrix and Eric Clapton
What scientists might call your pooch.