EPAM Systems Executive Assistant interview questions

after a short and bottom lined phone conversation I came to the office and met a very nice HR women. we only had a few informal sentences and she directed me to the head of the HR office. After having another informal interview with him I had to come back a few weeks later to meet the CEO and interview with h im as well. That was a very uncomfortable one since he would not talk to me not even looked at me, Just chated with the HR guy. However I got hired and loved th job