A Canada Study permit is a document issued to students after they enter Canada. They are also issued an eTA (electronic travel authorization) along with the study permit.
A student visa is issued to students to enter Canada. It is issued in your native country.
Yes, you can enter and study in Canada without IELTS. Canadian study institutions have adopted different English language tests to check language proficiency of students.
Canada has state of the art infrastructure, standard of education which attracts international students.
Yes, you have the option of working part-time while studying in Canada.