EPAM Systems Agile Project Manager interview questions

EPAM was very unprofessional. They had me interviewing by two separate processes for the same job, which they told me wasn't the case, and this cost me the job. I wasted my time going through multiple rounds of interviews, including an in person interview. I passed all of them. Then they told me I would have a final "meet and greet", which they made sound like a mere formality, with the client. It was a full on interview which started with the client saying that they think whoever takes that job may be setup to fail. He then gave me a very brief and limited description of a set of complex problems, and expected me to tell him how to solve all those problems based on very limited knowledge. There was no way I could please him. After this EPAM never followed up with me. Instead I heard from the client that I lost the job.