Answer:
I am an odd number. Take away a letter and I become even. What number am I?
I am easy to see but no one likes looking at me. Without me there would be no you. I can make you complain or make you happy. But you almost always take me for-granted.
I am a rock group that has 4 members, all of whom are dead, one of which was assassinated. What am I?
I'm orange when long I'm white when short. What am I?
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.
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.