Answer:
You can read me both ways I wear; One way it's a number reversed a snare.
Can not be bought, Can not be sold, Even if it's made of gold. What is it?
You write on me and secrets I can keep in places never seen. I spin like a top. Though stiff as a board, I'm often described like a mop. What am I?
I get paid to shoot people then blow them up.
I can fall off a building and live, but in water I will die. 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.