Degree

Hi,
Yes, you can apply for a degree course in Canada.

You need to have a regular Bachelor's degree from a recognised college or university in order to seek admission in Canada. After completing 3 years Bachelor's degree, you can seek admission in Canadian colleges.

Hello,
Yes, you can do B.Ed in Maths subject after you complete your degree from SGT University. But, since you are already a teacher, you should explore more options like UGCNET and then becoming professor.

Hello,
Kindly visit the link. https://www.shiksha.com/b-voc-bachelor-of-vocational-education-chp

I am not sure which university you were part of, but 5 years to get an original certificate is too much. If the university is not providing you after multiple requests, you can initiate legal action against them. If you have lost the certificate, you might have to register an FIR, and also put an ad in a local newspaper before requesting for the re issue of the certificate. But any way contact your University to understand the procedure.

In general- to study in Australia, you need to score a minimum 6.5 overall in IELTS with no band less than 6.0 for your postgraduate options.