As far as the "where do you see yourself in 5 years" question, I think the interviewer(s)' trying to get a feel for how motivated you are within the company. Are you looking to move up in the company? Do you know what might be available to you? Are you leaving in a year to travel abroad?
I hate answering this question, though. Because inevitably what I want to be doing in 5 years is traveling European beaches
I would answer it honestly. Meaning if you really want that position, you say something along the lines of "I hope to be in x position, and to have improved ________ within the company, etc." If you want to move up, you say so, but not "I want your job" lol. If you hope to be elsewhere, then say something like "I hope that my experience as a ___ with your company will be helping me in my pursuit of ___" (but make it open enough that you could still be w/ the company).