Answer:
Pointing North, South, East, and West it saves the lost and helps the rest. What is it?
You row in one while you float.
It belongs to you, but other people use it more than you do. What is it?
What runs around the whole yard without moving?
A squiggly line tells you when you've done it wrong
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.