Answer:
What type of paper can you neither read nor write on?
This is rectangular, hollow and has a lid, and where you’ll find it you might wonder, it is just six feet under. What is it?
As destructive as life, As healing as death; An institutioner of strife, Just as prone to bless. It is all that is good, Yet with an evil trend; As it was the beginning of things, It can also be the end.
You throw me out when you want to use me and you take me in when you don't want to use me. Who am I?
You get many of me, but never enough. After the last one, your life soon will snuff. You may have one of me but one day a year, When the last one is gone, your life disappears.
Sometimes I am white, sometimes I am dark. Most people love me. What am I?