Answer:
I am a nut with a hole
I'm simple for a few people, but hard for them to hear. I live inside of secrets and bring people's worst fears. What am I?
I can sizzle like bacon, I am made with an egg. I peel layers like onions, but still remain whole. I can be long, like a flagpole, yet fit in a hole. What am I?
Sometimes dark and sometimes bright I make my way among twinkling lights. Seas and oceans obey my call yet mountains I cannot move at all. My face is marred and gray But I'm majestic anyway
I go in hard come out soft. Blow me hard and I’ll make a pop.
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.