Answer:
I'm the start of eternity and the end of space. There are two of me in heaven and one in hell.
Without this, H2O would just be 2O
What has been around for millions of years but is never more than a month old?
Doing something of this nature is likely to land you in court
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
It's what light turns into in the night