In which country is Lake Victoria located?

What is the largest freshwater lake in South America? Which of the Great Lakes is the shallowest? Which lake is the world's largest saltwater lake? What is the largest of the Great Lakes by volume? In which country is Lake Issyk-Kul located? In which country is Lake Onega located? In which country is Lake Khövsgöl located? Which lake is the second-deepest lake in the world?