preparing for the interview
Of course there is no way to anticipate every question that you will be asked in an interview or campus visit. However, many questions are relatively standard, and if you think about them beforehand, and mentally prepare good answers, your actual answers will be that much more convincing.
The following site is designed for prospective professors in advertising and marketing, but most of the questions are relevant to academic job-seekers in other fields:
A more meta approach to attitude-related questions that sort out the "fit" and collegiality issues in hiring, including questions you might expect from deans and college presidents, is here:
For research-oriented institutions, this list of questions from an American Studies search is helpful in preparing: http://otal.umd.edu/~sies/jobquess.html.
Source: Mary Corbin Sies, Dept. of American Studies, University of Maryland, College Park.
A big part of the interview(s) is having good questions to ask the different people you'll meet. The American Political Science Association has established a list of agreed-upon questions that institutions will answer:
The following article in Chronicle of Higher Education also discusses the kinds of questions you should ask in interviews:
Not included in these question lists, but also something to consider, is a group of questions some of our grad students recently faced in campus visits: How do you encourage diversity? Describe how you have worked/would work to promote diversity in this department and in your courses. The Chronicles of Higher Education recently issued a special report on diversity: see http://chronicle.com/indepth/diversity/.