Answer:
There is one in every corner and two in every room.
Of these everyone has ten, part of two wholes at the arms end. What are they?
Power enough to smash ships and crush roofs. Yet it still must fear the sun.
What Can Fly Without Wings
This is meat from the upper part of a pig's leg salted and dried or smoked, often enjoyed in a sandwich.
I am a room that has a roof but no walls. What am I?