78% knows the answer to this question: "After the Battle of Hastings, what did William become known as? "

And do you know the answer to this one? "British and German troops facing each other in Flanders declared a spontaneous and unofficial Christmastime truce in 1914, during what war?"

59% knows the answer to this question: "In what war was the 'Battle of Nashville'? "

And do you know the answer to this one? "In 2014, Bohuslav Sobotka became the Prime Minister of which Eastern European country?"

66% knows the answer to this question: "Who said 'That's one small step for man; one giant leap for mankind'? "

And do you know the answer to this one? "Which country did Iraq invade in 1990, leading to the First Gulf War? "

90% knows the answer to this question: "What international holiday, started in 1970, celebrates the environment? "

And do you know the answer to this one? "In 2014, the International Court of Justice ruled that what country should stop its whaling program?"

76% knows the answer to this question: "What group of people became powerful in Mesopotamia in 1000 B.C.? "

And do you know the answer to this one? "What does OPEC stand for?"

88% knows the answer to this question: "What number is equal to Roman numeral V? "

And do you know the answer to this one? "Which computer company bought Nokia in 2013?"

69% knows the answer to this question: "Which of these held up buildings in Ancient Rome and Greece? "

And do you know the answer to this one? "What did London's Whitechapel Bell Foundry deliver in August 1752, in time to celebrate Pennsylvania's 50th birthday?"

74% knows the answer to this question: "Who "left the building" ... for good ... after his last concert, on June 26, 1977, at Market Square Arena in Indianapolis? "

And do you know the answer to this one? "Which former French president led the Free French Forces during World War II?"

41% knows the answer to this question: "What Elton John song describes the journey of a Mars-bound astronaut? "

And do you know the answer to this one? "In which country would you find Loch Ness, and possibly the mythical "Loch Ness Monster"?"

40% knows the answer to this question: "Which animal is not a rodent? "

And do you know the answer to this one? "What did a cartographer make?"

36% knows the answer to this question: "Find the next number (rounded off) in the following sequence: 40.00, 37.50, 35.00, 32.50... "

And do you know the answer to this one? "If you're like most people, what can't you do with your eyes open?"

41% knows the answer to this question: "Find the next number (rounded off) in the following sequence: 39.00, 36.50, 34.00, 31.50... "

And do you know the answer to this one? "For your birthday party you can invite 10 friends and invited 6, how many more can you invite?"