Answer:
Built of metal or wood to divide. It will make us good neighbors, if you stay on your side. What is it?
What devours all and can kill a king. Destroy a town and crushes mountains down?
As strong as love, more dangerous than cancer.
What has thousands of ribs and two backbones?
Nothing specific, but more than a few. This many clustered, together will do.
I always have to work with something in my eye. What am I?