Answer:
What is the most slipperiest country in the world?
I have roots nobody sees. I am taller than trees. Up up I go but I never grow.
I am useless when together but useful when I am broken apart. What am I?
I am a seed with three letters in my name. Take away the last two and I still sound the same. 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.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.