They play with your psychology & ask you the questions which are open-ended or either the questions whose answers can be both yes or no / agree or disagree. The candidate's odds of getting the answers right in their mind is depended on whether they agree or disagree with you at that given point of time. So at the start, it remains 50/50 for all the candidates. Request you to eat curd before you go for the interview, it brings luck. Note: They don't ask technical questions because they are always busy in psychology.