Answer:
Usually green but can be brown. It's a great place to play or lie down. What is it?
What instrument can you hear but never see?
What never asks questions but receives a lot of answers?
What must you give before you can keep it?
What time of day, when written in a capital letters, is the same forwards, backwards and upside down?
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.