Scholarships are generally at the Master's and PhD level. There are no automatical scholarships for clearing the GRE. You will need to contact the schools you are interested in attending directly to find out what scholarships they may have available for international students.
Hi, it depends on what direction you want to take. I can't say for sure about all of them, but I am interested in medicine and biology. Perhaps in other areas, this will be a little different, but recently I was on the biology scholarship here https://www.listsofscholarships.com/biology-scholarships/, and I can say that it was a great experience. If you are also interested in biology, there are many specifications, and I am sure that you will be able to find something that you will definitely like. You still have time, but you better hurry as the application must be submitted online by April 10th.
