A Job interview is not a one-way street, i.e. the interviewer is not the only one who gets to ask the questions. As a candidate, you will also get your opportunity to present your questions.
So, take the opportunity to clear all the confusion, before making your decision.
Here are 20 questions you can ask the interviewer:
1. Could you help to describe about the working environment here?
2. What would be my immediate task once I am on board?
3. What are the challenges that I need to foresee as the Head of the Department? Is there any issue that requires more attention than others?
4. May I know how the position is made vacant? Did somebody moves on to a new organization? Is this a newly created position?
5. How long the position has been vacant?