[rnd33]

On the coworker relationship question, why can't you just answer something like: "Anywhere from cordial professionalism to best friends who do everything together, it depends on who I 'click' with." I mean people are people, I'm happy spending free time with some coworkers, others I'm just ambivalent to, just like in all other parts of life.

This points out how bad that question really is, the interviewer wants you to mind-read how he/she sees wants the relationships at the company to be and answer accordingly.

[quanticle]

In practice, the purpose of the question is to weed out people who don't display a particular level of commitment to the organization. Allow the company to take over your social life makes it harder for you to leave the organization. I've definitely had experiences where I've stayed in bad jobs longer than I should have (at a cost to my health and sanity) because I liked my co-workers.