The gate is about 20' wide, but only one of the two doors is open, so ~10' space.
The man is standing 10' in front of the door. He is wearing the gray robes of a Pathfinder initiate, and carries some small insignias that would lead you to believe that he is official enough.
It is dawn.
Nope, you just know that there is some sort of testing involved.
Yes, he carries a mace at his waist.