In some circles the traditional form "Professor and Mrs David Wilkinson" is acceptable; but social change has made "Professor David and Mrs Mary Wilkinson" the widely preferred form.
Doctor.
No. College is a noun, also used as an adjunct or adjective (e.g. college freshmen, college professor). There is an adverb form with possible connotations, which is collegiately.
I believe the correct address is 'Your Worship'.
Lahore
The proper salutation for a doctor is doctor or professor depending on their title. In writing the short form can be used which will be Dr. or Prof.
For American Consul Generals, the proper form for the addressee is The Honorable First Name Last Name. The proper salutation, however, is Dear Mr. (or Ms. or Mrs.) Last Name.
As Lt. Governor.
The possessive form of "professor" is "professor's."
Ms. and then your last name.
The abbreviated form for professor is prof.
The short form for professor is prof.