Answer:
I am the red tongue of the earth, that buries cities.
What starts with a 'T', ends with a 'T', and has T in it?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.
In marble halls as white as milk, lined with a skin as soft as silk. Within a fountain crystal-clear. A golden apple doth appear. No doors there are to this stronghold, yet thieves break in and steal the gold.
What flies around all day but never goes anywhere?
What language does a billboard speak?