Answer:
I am in truth a yellow fork from tables in the sky by inadvertent fingers dropped the awful cutlery. Of mansions never quite disclosed and never quite concealed the apparatus of the dark to ignorance revealed.
I am lighter than air, but a hundred people cannot lift me. Careful, I am fragile. What am I?
I will go within you and destroy you. Only because you wanted me too
When you take away the whole from me there is always some left.
I am a word. I become longer when the third letter is removed.
It rows quickly with four oars but never comes out from under his own roof. What is it?