Hi! I don't know about the pay rate but I've given an interview for co-op, but I was unsuccessful. I don't remember all of the questions but they were your run of the mill job interview questions, just google it and go through some blogs. They stressed on leadership though and asked me how I would deal with different situations regarding my team and what would I do if I had to act in the interest of the company even though I didn't agree with it personally, and examples of such experiences I've had in the past. Overall they tended to focus on leadership and team work questions. Hope this helps!