11 Which largest lake has salty water?

Caspian Sea

12 Which is the second largest lake in the world on the basis of surface area?

Lake Superior

13 Where is Lake Superior located in the world?

USA

14 Which is the third largest lake in the world on the basis of surface area?

Lake Victoria

15 Where is Lake Victoria located in the world?

Africa

16 What is the highest lake in the world?

Lake Titicaca

17 Where is Lake Titicaca located in the world?

Andean (border between Peru and Bolivia)

18 Which is the largest freshwater lake in Asia?

Lake Manchar

19 What is the oldest lake in the world?

Lake Baikal

20 What is the purest lake in the world?

Blue Lake