Intern in the M&A

I had two 1on1 interviews; one with an associate and one with a 2 years analyst.
The associate interviewed me about my personality, motivation and understanding about what to expect at my position. Some interesting questions:
How do you cope with stress ad sleep deprivation? My answer: I am generally not a stressful person and I do power naps.
If you had an assignment late in the evening for which the deadline is 9am, what would you do? My answer: Just do it.
I was hinted that there might not be personal life because of the hours requirement. I said I know and talked about my priorities in life.
In general this interview was ok. The associate was tough, but I guess if you don't get intimidated it should be fine. Be very determined and sure that you want to do M&A. Have good reasons for why.
The analyst interview was on the technical part:
Show me a P&L (on the board)? How do you come out with a cashflow? Terminal value. What about the fact that cash is not received at the end of the year but throughout the year? (half year convention). How would you deal with provisions in a valuation model? Which valuation technique gives you the highest value?
The interviews were generally nice. I was really amazed about how much emphasis they put o the accounting part, especially understanding it. I put it as difficult because i believe it had some challenging questions and tricky parts which might make some people sweat, but i think if you try to make an educated guess and try to get your way through with some good understandings of the matter, you will be fine even if you don't know the exact answer.