Vienna and Belgrade lie on the banks of which river?

More Questions:

How many squares are there on a chessboard?

What British statesman wrote "A History of the English-Speaking People"?

What two colors are the cat's hat in "The Cat in the Hat"?

Who wrote King George V Christmas speech that was broadcast in 1932?

Who wrote the novel "Gone with the Wind"?

In which US state does the Rio Grande river begin?

What US state has the longest coastline?

Ghana is located along which gulf?

In what city are the famous Tivoli Gardens?

Which US state is home to the southernmost reaches of the Appalachian Mountains?

What US city is home to Pike Place Market?

What George Michael song was banned by the BBC and re-edited three times for MTV?

Who is Charlie's nephew on the TV show "Two and a Half Men"?

What month in 2017 did the United Kingdom begin Brexit Negotiations?

Who starred in the role of Ben in the TV show "Bonanza"?