Answer:
I am black and white and full of fuzz
Ten men's strength, ten men's length. Ten men can't break me, yet a young boy walks off with me. What am I?
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.
What has keys but no locks a space but no room and you can enter but can't go in?
My first is in riddle but not in little. My second is in think but not in brink. My third is in thyme but not in time. My fourth is in mother but not in brother. My last is in time but no t in climb.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.