Answer:
I know a word of letters three. Add two and fewer there will be. What is the word?
You write on me and secrets I can keep. In places never seen. I spin like a top. Though stiff as a board I'm often described like a mop.
I tremble at each breath of air and yet can heaviest burdens bear.
I am a seven letter word. I am very heavy. Take away two letters from me and you will get eight. Take away one letter from me and you will get 80. What word am I?
I have been the beginning of ideas for all time yet I am just one simple small object the things that you can use me for can be frustrating and also I can be pretty. I have some of the most valuable thing in the world on me yet almost everyone owns me.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?