Answer:
Most people need it, some ask for it, some give it, but almost nobody takes it. What is it?
A standard dimension for sandwiches and rulers
Where can you add 2 to 11 and get 1?
It comes only before, it comes only after. Rises only in darkness, but rises only in light. It is always the same, but is yet always different.
I am the red tongue of the earth, that buries cities.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?