What Am I Riddles

Question:

Look at my apple, keep me near.

Listen closely, I'll put worms in your ear.

What am I?

Question: You will always find me in the past. I can be created in the present, But the future can never taint me. What am I?

Question: You wear me every day but you never put me on.
I will change colors if you leave me out too long.

What am I?

Question: I have no eyes, ears, tongue, or nose.
Yet I see, hear, taste, and smell everything.

What am I?

Question: Poke your fingers in my eyes and I will open wide my jaws. Linen cloth, quills, or paper, my greedy lust devours them all.

What am I?