Answer:
What can be as big as an elephant but weighs nothing?
Teenage girls are pros at creating me. Learn me in classes.
I have thirteen hearts but no body or soul.
I'm light as a feather yet the strongest person can't hold me for more than a few minutes. What am I?
What is black when you buy it, red when you use it, and gray when you throw it away?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.