Answer:
Roast, boast, coast, post. What do you put in a toaster?
Drop me and the world will shatter. You can always find me where you empty your bladder. What am I?
I tremble at each breath of air and yet can heaviest burdens bear.
While you were folding a letter you got me. Usually you will do whatever it takes to avoid me but now you can't help but find me.
Fatherless and motherless. I was born without sin. Roared when I came into the world, but I never spoke again. What am I?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.