An unfurnished apartment would cost you around QR 5500 per month. Food and other miscellaneous expenses may total to another QR 2500. Add another QR 700 for your car. As for the school expenses, it all depends on which school you would like your children to go to. Many people prefer schools of their own nation. Fees and costs vary from school to school. I guess you should be having substantial savings at the end of the month.