BNP Paribas Operations Summer interview questions

did about two phone interview and one skype interview. After that, I got an offer to attend a super day. I interviewed with four people. The interview is divided into four parts: Behavioral, technical, aptitude, and culture. Technical questions: Something like what is 10% of (forgot the number) If you had 2 jugs of water one 3 gallons and the other 5 gallons how would you get 4 gallons exact If you flip a coin 4 times what are the odds of getting two heads How many golf balls would it take to fill met stadium If a companies size doubles everyday and it reaches full capacity on the 10th day. What day will the company be at 50% capacity Some question about how I would improve an operations system on excel They ask a lot about what do you know about operations and why Why BNP. Really understand what operations is in finance