TOEFL

Hi Naaz,
It is required. It can be waived if the university allows you to do so. You have to write directly to the university and ask for waivers. It can be waived off if you have a very strong profile and have completed your studies from an English medium institute. Write to the university.

If you score well in TOFEL, then you can get the university. They don't have some specific criteria, but they will consider you academics and your extra activities as well. Good luck.

TOEFL and IELTS tests are necessary to test your understanding of English both spoken and written. Hence, it is very necessary.

No, it is very difficult to get admission with this score, if you are planning for it, then you need to give GRE as well as TOEFL, and if you are planning for German, you need to get German language test and for Canada, FOEFL is sufficient. But, your score for all countries should be near about 100.

To teach English abroad, besides being expert in English, you should touch with IELTS or TESOL. To learn English is an asset and most demanding aspect of today's trend. Consider it as an Art and flourish to Social Media Marketing/ Multi Media Strategy for wide scope.

It depends on the course and universities that you are preferring. When you select a course and university, visit their website and search for that particular course. In the course's admission details, you will see the eligibility criteria. There if IELTS or TOEFL is required, they will specify it with the required cutoff. To my knowledge, almost all the universities ask for IELTS or TOEFL score. It's no big deal actually to clear it. Just write the exam once. All the best.

According to the data, there are more than 10,000 universities and other institutions in over 150 countries which accept TOEFL scores. You can find more here:
https://www.ets.org/toefl/ibt/about/who_accepts_scores

This is actually a language exam which you need to give at the time of applying for some other country for settling. This is not a type of exam which gives you opportunities.