Mid Life Question:

You may not know yet - so say that but follow it with "but here is what I know about your company... How accurate am I?" If you do know why you want to work for this company it will usually relate to one of three areas - the company (reputation, high-profile, growth, offering of ground-floor opportunities), the position (variety, pace, technical orientation, scope of authority) or the people (personality match). Always articulate what you can do for the company, not what the company can do for you.