What is the name of the highest waterfall in South America?

What is the name of the mountain range in which the Tugela Falls is located? What is the height of the Yosemite Falls? In which countries is the Iguazu Falls located? In which national park is the Sutherland Falls located? In which national park is the Russell Falls located? What is the height of the Kaieteur Falls? What is the largest country by total area in North America? Which country has the longest land border with Russia?