Answer:
What surrounds the world, yet dwells within a thimble?
A harvest sown and reaped on the same day In an unplowed field, Which increases without growing, Remains whole though it is eaten Within and without, Is useless and yet The staple of nations.
We are five little objects of an everyday sort, You will find us all in a tennis court.
Put into a pit, locked beneath a grate, guarded through the night, yet it still goes out.
So cold, damp and dark this place. To stay you would refrain, yet those who occupy this place do never complain.
A doctor might remove one from the neck of a Dracula victim.