@Fastfriend
Bhai Wassalaam,
1) Your Car's Petrol Average is not normal dear, I have a 1.6 eminent and even I get at least 350 km per tank of Rs. 2000. Get it checked by the authorised dealer.
2) & 3) for Breaks and Clutch, well, get it checked also, its not normal... as for the other sound, could you explain a little bit more about that...
4) CD player starts from where you left it when you switched off the car. If you'll leave it on when you switch off the engine, it will surely be ON at the time of starting the engine again. 
5) Centre possition of Temp guage is very normal in all new cars dear.. nothing to worry about..