Answer:
What is the building that you leave without ever having entered.
No is to negative as yes is to...?
What man can shave 10 times a day and still have a beard?
What can you hold in your right hand but never in your left hand?
How far can a man hike into the forest?
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.