30% knows the answer to this question: "What river forms the boundary between Texas and Mexico? "

And do you know the answer to this one? "Which mountain isn't a volcano?"

45% knows the answer to this question: "Time is ... "

And do you know the answer to this one? "What Wyoming landmark did the Indians call Mateo Tepee, from a story that the rock pushed itself up from the ground to lift children past the reach of bears?"

64% knows the answer to this question: "Which wooded area of Nottinghamshire was once a royal park and hunting ground? "

And do you know the answer to this one? "Which of these is not one of the UK's major products?"

63% knows the answer to this question: "What title did Queen Elizabeth II bestow upon Elton John in 1998? "

And do you know the answer to this one? "Which two American criminals were killed in a shootout with police on May 23, 1934? "

35% knows the answer to this question: "In 1981, which famous figure was shot by John Hinckley? "

And do you know the answer to this one? "Meghan Markle married which member of the UK Royal Family in 2018?"

42% knows the answer to this question: "Who sang the famous song "I Am..I Said" (1971)? "

And do you know the answer to this one? "Who sang the famous song "Just The Way You Are" (1978)?"

85% knows the answer to this question: "The Everglades is a large area of swampland in which US state? "

And do you know the answer to this one? "Which of these wine-producing areas is in America?"

40% knows the answer to this question: "Complete the name of Patti Page's 1950 song 'The _____ Waltz'. "

And do you know the answer to this one? "Knowledge is power, ... it well"

87% knows the answer to this question: "Which of these words rhymes with ten? "

And do you know the answer to this one? "Which Beatles child hit #1 in the US with "Too Late for Goodbyes" from his 1984 album Valotte?"

79% knows the answer to this question: "What comes before dystrophy for a genetic disease? "

And do you know the answer to this one? "What is the name of the white liquid people drink to highlight X-eay images?"

54% knows the answer to this question: "Christina Aguilera sang about which of these in 1999? "

And do you know the answer to this one? "What Candy Man started with the Will Mastin Trio, being billed as the Dancing Midget to get around child labor laws?"

34% knows the answer to this question: "A bargee worked in which type of transport? "

And do you know the answer to this one? "What would you call a large-eyed primate from Southeast Asia?"