Does this hotel have any connecting rooms, as to say, a door connecting 2 rooms that, if opened, a person can walk directly from 1 room to another without entering the hall?

Yes this is true. An they go very fast!!

Yes, it does.

Yes..

Yes. Absolutely! The last time i stayed there, my room was an adjoining room just as you described.

My wife just told me that they do have rooms like that. So yes!