Round One: no real questions other than your salary requirement/range
Round Two: "Tell me a little about yourself then talk me through your resume"
Round Three:
• With HR person: simple "about you" questions ("Tell me about yourself", "Why do you want to work at this particular company?"
• With department specific person: "What do you know about this position?", "What in your experience makes you a good fit?" - they want you to ask them several questions as well about the position that indicate you know what the position is and have some expertise in similar roles
• With manager: asks simple behavioral questions "tell me about a time you . . . (experienced conflict, had to work on a team, had to give a presentation, strengths & weaknesses)"