Answer:
Come up and we go, Go down and we stay.
What is seen in the middle of march and april?
Built of metal or wood to divide. It will make us good neighbors, if you stay on your side. What is it?
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair
Sheets of paper that tell new stories each day.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.