100% knows the answer to this question: "How old was Prince Harry when his mother died? "

And do you know the answer to this one? "What year did American bombing of North Vietnam begin?"

98% knows the answer to this question: "The first Autobahn opened in which country in 1932? "

And do you know the answer to this one? "Prince Akihito announced his engagement to commoner Michiko Shoda in which country in 1959?"

100% knows the answer to this question: "IN 1942, the minimum age for the drafted was lowered from 21 to what? "

And do you know the answer to this one? "Photos of the far side of which object were first seen in 1959?"

100% knows the answer to this question: "What iconic car was produced by Volkswagen beginning in 1945? "

And do you know the answer to this one? "What will outweigh fish in the world's oceans by 2050 according to report by the World Economic Forum?"

100% knows the answer to this question: "The 1953 coronation of Queen Elizabeth II was the first to be what? "

And do you know the answer to this one? "Which first man to walk on the Moon died in 2012?"

96% knows the answer to this question: "Who was the French President at Versailles during the signing of the Treaty? "

And do you know the answer to this one? "ANZAC forces in WW1 were drawn from Australia and which other country?"

84% knows the answer to this question: "In which country is the city of Izmir located? "

And do you know the answer to this one? "Although we don't think of it this way, what international landmark is also a 17th-century mausoleum?"

85% knows the answer to this question: "Which of the following has been linked to climate change? "

And do you know the answer to this one? "What US state borders four of the five Great Lakes?"

100% knows the answer to this question: "What is the capital city of the Central American country of Guatemala? "

And do you know the answer to this one? "What is the capital of Nepal?"

93% knows the answer to this question: "Which continent is closest to North America? "

And do you know the answer to this one? "Built to keep out the Picts, what Roman wall runs 117 kilometers, all the way to Solway Firth?"

90% knows the answer to this question: "National Maritime Museum in London is located where? "

And do you know the answer to this one? "Which is the only Commonwealth country to have an Atlantic and Pacific coastline?"

87% knows the answer to this question: "Which country is located on the continent of South America? "

And do you know the answer to this one? "What do North Africans call a riverbed that only occasionally is a river?"