Australia

Well, both are costly, but New Zealand is better than Australia.

No, it is not the best country for journalism.

I wouldn't suggest you any of these because the living expenses in these countries is just of the league. In my opinion, go for Germany or New Zealand. Germany offers international students scholarships that result to very less fees or even no fees.
New Zealand is also offering many scholarships. The living expenses is quite low in these countries as compared to those countries which you have mentioned.
I hope it helps.

You need to score 60% in Bachelors degree.

Australia is slightly easier but only if you have the qualifications listed as per the SOL, you must also have a job and have the skills. Having said that, obtaining PR is slightly tough in Canada as there is no separate pool for international candidates and work permit schemes follow provincial rules and nomination, so it becomes tough. Irrespective of both the countries you must have the necessary skills and qualifications.

Ten years is a long period, market trends keeps changing every year. I would suggest you to keep reading business and economics news to keep yourself updated.

All of these countries are the best for civil engineering. The best country is US because most of the top universities in the world are from US. (Like MIT, Harvard, Stanford, Yale, Priceton, and many more). Also, placement (incomes) are higher than other. So, I will suggest US.

Hi Abhijeet,
University suggestion requires careful evaluation of an applicant's profile. You haven't mentioned about your academic profile to precisely guide you. I would suggest you to write to studyabroad@shiksha.com and share your profile, Shiksha's study abroad counselors will get in touch with you for university specific assistance.

Yes ,you can apply for MS in Australia. You need to clear your backlogs first. I am not sure that you can get admission in a good university.

There is no guarantee. You will get a job if you are highly skilled and qualified. There is a demand of computer engineers, so dedicate yourself.