Opera Solutions Analyst interview questions

One written exam to startwith, consisted of both objective and subjective questions..simple class X maths, Data interpretation questions, time limit 1 hr..in all, 6 subjective (which also had 2-3 standard puzzles) and 20 objective.. interview consisted of 4 rounds, 2HR (questions on resume, projects, internship), 1 case study, 1 puzzle round. Each for a duration of about 30 mins. In the case study round, I was asked to price an airline ticket for company..several economic parameters were given..