Answer:
I go around a yard but does not move.
When I point up, it's bright. When I point down, it's dark. What am I?
I am the ultimate killing machine used not once but TWICE I can be made by humans.
You throw away my outside, you cook my inside. Then you eat my outside and you throw away my inside. What am I?
When you need me, you must find me. When you find me, you no longer need 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.