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: I'm measured in temperature and time, but have neither.

What am I?

Question: Swallowing one is fine.
Swallowing two together is fine.
But Swallow them separately and all shall fall.

What are they?

Question: I'm small but big, i hide behind you but come out when you fall... What am I?

Question: I talk, but I do not speak my mind
I hear words, but I do not listen to thoughts
When I wake, all see me
When I sleep, all hear me
Many heads are on my shoulders
Many hands are at my feet
The strongest steel cannot break my visage
But the softest whisper can destroy me
The quietest whimper can be heard.