Canada

Best universities for MS in Computer Science in Canada:
University of British Columbia (UBC): The UBC Department of Computer Science, established in May 1968, is one of the top computer science departments in North America.
University of Waterloo
University of Toronto
McGill University
McMaster University
Queen's University.

There are many good colleges in Canada. What course you want to opt there?

Yes, you can do BBA in Canada, but check for requirements laid out by the college.

Yes, it is difficult and you may check the below link”
https://www.wes.org/advisory-blog/practicing-dentistry-in-canada/

Application form
Statement of purpose
GPA scores
TOEFL, IELTS or other similar English tests
Official transcripts and Bachelors Diploma
CV
Receipt of application fee
Passport copy
Criminal record/ police clearance.

Hello, there are plenty of engineering colleges in canada. Can you specify which specific stream you are looking out for.

Masters in Canada are provided by universities. In order to make it into a University, you need to qualify tight requirements. One of them would be above 70% in your Bachelor's. Then the next one would be a few years experience at a managerial level or so. These things increase your chances of getting admission and the waiting period is usually 2-3months for confirmation of admission.