Answer:
I am an odd number. Take away a letter and I become even. What number am I?
I am not very commonly found! Only in some rainforest! I have an odd number of toes! I'm very lazy and hang upside down!
What is light as a feather but even the strongest man cannot hold it for more than a few minutes?
I can be thin but not fat; in your body but never on your placemat. I'm always better when I'm fresh but you'll never see me in the flesh.
Light hides me and darkness kills me. What am I?
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.