Citi Summer Analyst interview questions

It was a very arbitrary process, they came to campus to present and then after the presentation had 'office hours' with the 4 MD's who came along, thats when a few people got invitations to their super day and a few got called to a 'First Round' at their office in New York. I was in the latter group. The first round was with two different people, one was behavioral and one was technical.

Three round of interviews by bankers; the banker will send an Email and schedule for the time slot. I have already done two of the interviews, one by association, one by VP. The associate's interview was normal process including CV check, why Citi, Why IBD and competency questions (Example of team members have different opinions); also technical questions ( is it possible that a company has negative equity? why a company has positive EBITDA for 10 years and goes bankruptcy one day? What's the drawback of DCF? What will happen to three statements if depreciation increases 10?)