Operis Financial Modeling interview questions

First, you are interviewed by a HR person and a member of the relevant team, in my case the financial modelling team. They ask you a few mathematical puzzles and questions about your CV. If successful, they invite you for another interview, this time, they will send you the details of a prject for you to perpare a presentation, with cash-flows and analysis for a client recommendation. Expect to be question on every decision you make on the way you analyse the different secenarios and get technical. This interview is conducted by a sr manager and a technical member of the team. At the end there's an informal drinks ocassion.