I am within my last weeks as an intern at H&P. I had to pass only 1 round in order to get this position.
1. Introduction of H&P
2. Introduction of myself (including CV and motivation)
3. Case: Estimate the economic loss that smokers cause within a year.
Being self-critical, I did not manage to solve the case flawlessly since mental math is not my strongest skill. Nevertheless, I got the job, because the interviewers liked the way I structured and tackled the issue. But they do also check your presentation skills. So try to exude confidence and sovereignty. All in all, there is reason for being afraig or nervous. The consultants at H&P are all very kind and helpful.