What is the name of Oceania's longest river?
The Murray River of Australia is the longest river in Oceania.
Many websites will incorrectly state that the longest river is the Murray-Darling but this is not a river. These are two separate rivers (the Murray and the Darling) which form part of a vast river system known as the Murray-Darling river system.
First off, where in Kansas? If you're flying from Topeka, then from Topeka (Forbes Field) to Guam would be about 7120 miles. Here's a good website to get a rough estimate:
http://www.webflyer.com/travel/milemarker/
Is New Guinea Canadian territory?
No. Canada has never had any claim to any part of the island of New Guinea.
Is Oceania considered a country in the novel "1984"?
No, Oceania is not considered a country in the novel "1984." Instead, it is a fictional superstate that encompasses the territories of the novel's setting.