Answer:
I'm a type of pizza that is folded in half before cooking to contain a filling
I am free for the taking. Through all of your life, though given but once at birth. I am less than nothing in weight, but will fell the strongest of you if held.
During the 1800's these turned women into hourglasses and is becoming more popular again these days
What flares up and does a lot of good, and when it dies is just a piece of wood?
What type of bar gets you wet walking in and out of it but keeps you dry inside?
I am your mother's brother's only brother in law. Who am I?