71% knows the answer to this question: "Of these, which was a world leader in the 80s? "

And do you know the answer to this one? "The Roman Empire was centered in which present-day country?"

87% knows the answer to this question: "Roman men wore togas and Roman women wore what? "

And do you know the answer to this one? "What president's only child (that we know of) was named Chelsea?"

60% knows the answer to this question: "Which Asian country landed a rover on the Moon in 2013? "

And do you know the answer to this one? "In 1982, Argentina invaded the Malvinas. What do the rest of us call the Malvinas?"

52% knows the answer to this question: "Which country is also known as Holland? "

And do you know the answer to this one? "Which country is also known as Eire?"

88% knows the answer to this question: "An aqueduct is an ancient type of bridge that transports what? "

And do you know the answer to this one? "Who became the leader of North Korea after his father died on 17 December 2011?"

45% knows the answer to this question: "Which former First Lady died in 1994, 31 years after her husband was assassinated? "

And do you know the answer to this one? "What were the first names of Franklin Roosevelt's wife?"

71% knows the answer to this question: "What was the name of the rulers of Ancient Egypt? "

And do you know the answer to this one? "Who patented the first practical revolver in 1835?"

93% knows the answer to this question: "Who was the creator of the Mongol empire? "

And do you know the answer to this one? "What song did the charity supergroup USA for Africa release for charity?"

33% knows the answer to this question: "Descended from a wealthy aristocratic family, the young Plato joined the group of disciples of a famous philosopher who influenced him profoundly. Who was his teacher? "

And do you know the answer to this one? "Queen Elizabeth II speaks what language fluently?"

49% knows the answer to this question: "In 2013, a deadly train wreck took place in which country's Santiago de Compostela? "

And do you know the answer to this one? "What were medieval knights best known as?"

85% knows the answer to this question: "Which country did St. Patrick help convert to Christianity? "

And do you know the answer to this one? "Which bishop was a good friend of Nelson Mandela and assisted him during his presidency?"

65% knows the answer to this question: "Napoleon was the leader of which country? "

And do you know the answer to this one? "What American federal prison was located on an island in San Francisco Bay?"