Ashtangi Guy
While all of your questions are good and valid questions, MOST of them are clearly answered already on the EK Employee website. i suggest just reading all the materials with which EK has provided you already, you will get much better answers than on here.
also you should not worry about stuff like what sort of food you're going to get on flights yet. is that affecting your decision to apply? you have MUCH more important things to worry about!