Answer:
No matter how little or how much you use me, you change me every month. What am I?
One might hang a locket from this
Sometimes you feel it weigh a ton. Yet it is nothing, but somehow still there. Makes you uncomfortable around anyone, But speak its name and it's gone.
One who has offended the government and has been detained by it
There is a word of letters three, Add one letter to it and none there’ll be. What is the word?
I am a rock group with four members. All dead one was assassinated.