What Am I Riddles

Question: I give advice to others,
yet I know nothing myself.
I am a hitchhiker destined to stay still.

Question: Without fingers, I point,
without arms, I strike,
without feet, I run.

What am I?

Question: I have no wings but I fly,
I have no teeth but I bite.

What am I?

Question: Shake me and I'll do what you want,
but first you have to pull me from the ground.
I'm on the tip of your tongue and over your shoulder.

What am I?

Question: I have a name that's not mine,
and no one cares about me in their prime.
People cry at my sight,
and lie by me all day and night.

What am I?