Hi there ucitian,
I am english and presently studying Informatik at the technical university of Munich.
I have written an article on this topic already for the university of Newcastle in England. You can find it here: Leeds Uni vs. Munich Uni (TU) comparison
In summary, as short answers to your questions I can offer the following.
DO THEY OFFER M.S COURSES IN ENGLISH LANGUAGE?
Yes they do. In fact I know several people doing M.Sc's at the TU Munich and quite a few of them don't speak any german at all. As far as I'm aware, it's all done in english in an attempt to lure foreign students.
WHAT IS THE GERMAN LANGUAGE REQUIREMENT OF MUNICH UNIVERSITY?
For undergraduate studies it's a must. You have to show proof of your german skills to intermediate level by doing a course to that level either at the Goethe Institute or at the University itself which offer a course specially for that.
However, for postgrads it's not necessary.
HOW MUCH DOES IT COST FOR AN INTERNATIONAL STUDENT TO LIVE IN MUNICH?
How long is a piece of string? As a rule anything from 150 Euro for a shared flat. THere's no upper limit. Normally I would say around 200-300 Euro. I don't know I own my flat and have done for several years so thankfully I've never had to look for accommodation in Munich. BE WARNED - accommodation in Munich is in HIGH demand. It's hard to find decent digs here.
WHAT ADMISSION CRITERIA DO THEY FOLLOW?
Depends what you want to do. This is such a general question I recommend you ask them yourself.
WHERE DOES MUNICH UNIVERSITY STAND AMONG OTHER UNIVERSITIES IN GERMANY?
Apparently, it's one of the best. However, I personally have never done any comparison because I never had any intention of studying anywhere else. Everything I know is gathered from hearsay and most of that from student already at the university. Obviously, they're going to be biased