Okay, anyone who thinks this is a problem with the movie, simply because it relies too much on "coincidence", really need re-access their own imagination and their ability to interpret the use such devices in film. The whole point of making the answers to these questions relate to Jamal's life is to show that our understanding of human education is elitist and close-minded (much like the people who don't understand this point of the movie). While we understand educated people as people who are well-read and possess tons of education (and implicitly, money), we give very little value to the education one receives through poverty and hardship (whether in the United States or in India, we treat the notion of education and intelligence in this manner). The whole ordeal where he is beaten, insulted and tortured by police is there to show that nobody in and 'respectable' position in society could fathom that a low-life slum dog could possibly know the answers to these challenging questions. But we see in Jamal, more than just a slum dog, but a bright, inquisitive and resourceful child that -- had he been raised in a wealthier environment -- could have been a doctor or lawyer or computer genius. Through the challenges of his life, we retained knowledge and that's why he knew the answers. He probably learned a lot of things and probably could have answered more questions. But if you think that its just all about fate and coincidence then you missed the whole fucking point of the movie.