A: It depends upon the universities and country. Mostly we need to apply at least 3 to 4 months before prescribed intakes.
A: Work during studies also depends upon the country of your choice. For example, some countries allow students to work for 20 hours per week, but mostly almost all the countries do so.
A: Almost all universities have its own eligibility criteria like minimum academics, English language requirement and so on.
A: If all the documents and offer letter from university are proper, then it is not a difficult task to obtain the student visa.
A: Some countries do not require an interview, but most of them require an interview. But there is no need of being nervous.