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Question 1 of 10
Most of the oxygen in the air is produced by what chemical process?
Question 2 of 10
Which of these devices would you most likely use to listen to music?
Question 3 of 10
Alfred J Gross invented this for doctors, who didn't like it, although the last people to use it were hospital doctors. Mind you, the tech behind it also powers garage openers. What is it?
Question 4 of 10
Which space probe landed on Mars in June 1999?
Question 5 of 10
What country shares its name with an ink that is chemically inert, not affected by sunlight and virtually permanent?
Question 6 of 10
At 11:38 a.m., on January 28, 1986, just 74 seconds into its 10th mission, an O-ring ruptured, setting off a fiery explosion in the main fuel tank of which space shuttle?
Question 7 of 10
What happens to the pressure of water as depth under the water increases?
Question 8 of 10
The grandfather paradox is held up as one of the risks of what improbable science fiction activity?
Question 9 of 10
Water freezes at what temperature?
Question 10 of 10
Wood's glass, which blocks most wavelengths of light, was originally used to encode messages. What kind of light does it let through?
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Average Score: 9100% knows the answer to this question: "In 1986, plans were announced for a tunnel under which European body of water? "
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Challenging Knowledge Quiz
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Mixed Trivia that presents a challenge.
Nobody is able to top a 5
Average Score: 9100% knows the answer to this question: "What is the correct name for a product that a country brings in from another country to buy? "
And do you know the answer to this one? "Jolene' is a song by which American artist?"
History Quizzes
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Challenging Quiz About History
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History Trivia Quiz
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10 questions about history!
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Average Score: 999% knows the answer to this question: "Which country did Joan of Arc try to set free from English domination? " -
Elementary School History Quiz
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Average Score: 8100% knows the answer to this question: "Who killed Abraham Lincoln in 1865? " -
Quiz about History
How many retries did you need?
Average Score: 7100% knows the answer to this question: "Which of these is a real book release from 2015, the latest in a long running series? " -
You think you know your History?
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Average Score: 798% knows the answer to this question: "President Antonio Segni resigned as the leader of what European country in 1964? " -
10 questions about history!
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Average Score: 7100% knows the answer to this question: "In 1950, scientists started to date which documents, found in the Dead Sea? " -
History Quiz
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Average Score: 798% knows the answer to this question: "Where were German Zeppelins found? " -
History Quiz
Wil you stand a chance?
Average Score: 8100% knows the answer to this question: "Muhammad Ali refused to fight in which war? "
Geography Quizzes
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Challenging Geography Quiz
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Average Score: 899% knows the answer to this question: "Which of these cities is located in Holland? " -
Sorry, you are just not good enough
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Average Score: 8100% knows the answer to this question: "What is the capital city of the Central American country of Guatemala? " -
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Average Score: 8100% knows the answer to this question: "By what name are Australian women known generically? " -
Geography Quiz
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Average Score: 996% knows the answer to this question: "Rice, soy sauce and fish sauce are traditional ingredients in what type of cooking? " -
Geology Quiz - How Much Do You Know?
Test Your Knowledge and See if You're Up to the Challenge
Average Score: 999% knows the answer to this question: "On which body of water will surfers at Newquay catch the wave? " -
Have you ever been to Japan?
HARD Geography Quiz
Average Score: 6100% knows the answer to this question: "In what country was Citroen founded in 1919? " -
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Average Score: 6100% knows the answer to this question: "Which country lies directly south of Mongolia? " -
Geography Quiz
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Average Score: 7100% knows the answer to this question: "With 1,000 plus rooms, what is the largest inhabited castle in the world? " -
Challenging Geography Quiz
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Average Score: 9100% knows the answer to this question: "Which of these countries has a population of over 1.2 billion? "
Music Quizzes
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Challenging Music Quiz
We challenge you to do better than a 5 out of 10
Average Score: 899% knows the answer to this question: "Who "stuck a feather in his hat and called it macaroni"? " -
Music Quiz
How often do you listen to music?
Average Score: 8100% knows the answer to this question: "Which of these groups would you most associate with Diana Ross? " -
Quiz about Music
Only real music fans score a decent 7+
Average Score: 9100% knows the answer to this question: "Which of these was a hit single for The Mamas & the Papas in 1966? " -
Music Quiz
Can you do better than her 5 out of 10?
Average Score: 999% knows the answer to this question: "According to grammar expert Irving Fisher what song's title would have been correct if it had been in response to the question, "Have you no bananas?" " -
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Average Score: 793% knows the answer to this question: "Paul Westerberg was the front man for which band originally named The Impediments? " -
Music Quiz
Can you do better than a 5 out of 10?
Average Score: 7100% knows the answer to this question: "What is a group of four performers called? " -
Music Quiz
Can you do better than a 5 out of 10?
Average Score: 9100% knows the answer to this question: "In what song does Dolly Parton sing: "What a way to make a livin' - Barely gettin' by - Its all takin' - And no givin"? " -
Music Quiz
Have you ever been to a concert?
Average Score: 999% knows the answer to this question: "Davy Jones was the lead singer in which band? " -
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Average Score: 9100% knows the answer to this question: "Help was a hit song of which band? "
Science Quizzes
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Hard Science Quiz
Average Score: 998% knows the answer to this question: "A 'tracheotomy' is performed when what is blocked? " -
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Science Quiz
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10 questions
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Hard Science Quiz
Tell us if you scored an impossible 10
Average Score: 8100% knows the answer to this question: "The word "lunar" means something related to what? " -
Play This Science Quiz
Only for quizzers with an high IQ
Average Score: 9100% knows the answer to this question: "Most of the oxygen in the air is produced by what chemical process? " -
Science Quiz
Nobody can score a perfect 10
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Are you a scientist?
Proof by beating her score!
Average Score: 7100% knows the answer to this question: "What type of drug causes an increase in urination? " -
Science Quiz
Try scoring a perfect 10
Average Score: 10100% knows the answer to this question: "Poodle, collie, beagle and golden retriever are all types of what animal? " -
Nobody can score higher than a lousy 5
Science Quiz
Average Score: 790% knows the answer to this question: "What do we call the teeth we grind our food with? "
Who Sang Quizzes
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Who Sang These Songs?
Please tell us if you know more than 6 songs
Average Score: 9100% knows the answer to this question: "Who sang the famous song "Imagine" (1971) ? " -
Who Sang These Songs?
No is able to score higher than a 6
Average Score: 997% knows the answer to this question: "Who sang the famous song "Starman" (1972) " -
Who Sang These Songs?
How many songs did you know?
Average Score: 6100% knows the answer to this question: "Who sang the famous song "Just Can't Get Enough (live)" (1985) " -
Who Sang These Songs?
Nobody knows more than 4 songs
Average Score: 788% knows the answer to this question: "Who sang the famous song "Rock With You" (1979)? " -
Who sang these songs?
10 song questions
Average Score: 9100% knows the answer to this question: "Who sang the famous song "Take A Chance On Me" (1977) ? " -
Who sang these songs?
10 questions about music
Average Score: 6100% knows the answer to this question: "Who sang the famous song "Djangology" (1949)? " -
Who Sang These Songs From The 70s?
10 hard questions
Average Score: 9100% knows the answer to this question: "Who sang the famous song "Fernando" (1975) ? " -
Who Sang These Songs?
Did you know these songs?
Average Score: 998% knows the answer to this question: "Who sang the famous song "Lay Lady Lay" (1969) " -
Who Sang These Psychedelic Rock Songs?
How many rock songs did you know?
Average Score: 899% knows the answer to this question: "Who sang the famous song "Good Vibrations" (1966)? "
Food & Beverage Quizzes
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Unknown Fruit Quiz
No one scores a 6 or more in this unknown fruit quiz!
Average Score: 7100% knows the answer to this question: "What is the name of this unknown fruit? " -
Food and Beverage Quiz
Who is able to score higher than a lousy 4? Share if you did
Average Score: 9100% knows the answer to this question: "Which animal's meat is referred to as mutton, particularly when the animal is an adult? " -
10 fun questions about food you probably can't answer
Food Quiz
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Challenging Food & Beverages Quiz
We challenge you to beat his score!
Average Score: 8100% knows the answer to this question: "Pop tarts can be heated in which of the following? " -
Challenging Food Quiz
10 HARD questions about food & beverages
Average Score: 6100% knows the answer to this question: "if you order Chateaubriand, what type of meat will you be served? " -
Food & Beverages Quiz
We challenge you to score higher than a lousy 5
Average Score: 9100% knows the answer to this question: "Also called pieplant, what tart pink vegetable is often used as a pie filling? " -
Food and Beverage Quiz
10 questions but you won't get them all correctly!
Average Score: 9100% knows the answer to this question: "What second largest island in the Mediterranean are canned herrings named for? " -
Food & Beverages Quiz
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Challenging Food Quiz
We bet you're not a true chef!
Average Score: 998% knows the answer to this question: "Known for its sweet, deep-red flesh, what orange mutation probably first appeared in 17th century Sicily? "
General Knowledge Quizzes
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Unleash your inner-genius
Knowledge Quiz
Average Score: 896% knows the answer to this question: "Who released the famous single 'All Shook Up' in 1957? " -
10 Knowledge Questions
Did you know the answer to question 8?
Average Score: 9100% knows the answer to this question: "Which of these is NOT in Europe? " -
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Average Score: 898% knows the answer to this question: "Who wrote and starred in Rambo: first Blood? " -
We have 10 Knowledge Questions for you!
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Average Score: 7100% knows the answer to this question: "How do you write 0.44 as a fraction? " -
Are you a smart senior and can you nail this quiz?
Enter Here
Average Score: 8100% knows the answer to this question: "Which of these fortresses is not in Europe? " -
Hard Mixed Trivia Quiz
This quiz is specially made for you!
Average Score: 897% knows the answer to this question: "8x6+202 equals what number? " -
Challenging Knowledge Quiz
Who dares to take this quiz?
Average Score: 899% knows the answer to this question: "Many people began working where during the Industrial Revolution? " -
No human soul will be able to answer these questions
Challenging Trivia Quiz
Average Score: 9100% knows the answer to this question: "How many calories are there in a glass of water? " -
General Knowledge Quiz
But we challenge you to score an 8+
Average Score: 897% knows the answer to this question: "Which of this selection of US newspapers circulates the most? "
Literature Quizzes
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Literature Quiz
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Average Score: 8100% knows the answer to this question: "What classic novel did D. H. Lawrence write in 1928? " -
Literature Quiz
Who is your favorite author?
Average Score: 899% knows the answer to this question: "In "Robinson Crusoe", where is Robinson Crusoe stranded? " -
Literature Test
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Average Score: 8100% knows the answer to this question: "Who wrote the comedy "Midsummer Night's Dream"? " -
Literature Quiz
How much knowledge have you stored in you brain about Literature?
Average Score: 796% knows the answer to this question: "What word means to award compensation to? " -
Tell us, what do you really know about literature?
We think not enough to get more than 4 answer correctly!
Average Score: 6100% knows the answer to this question: "What John Spyri story is about a girl who lives in the Alps? "
Movie Quizzes
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We bet you can't even finish half of these movie titles in this quiz
Movie Quiz
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It's highly doubtful you can complete even half of these movie titles in this quiz.
Movie Quiz
Average Score: 9100% knows the answer to this question: "One Flew Over the Cuckoo's "..." (1975) " -
HARD Movie Quiz
Enjoy and share your score below in the comments
Average Score: 6100% knows the answer to this question: "The Turning is a modern take on what novella? " -
10 Hard Movie Questions
What is the last movie you have seen?
Average Score: 798% knows the answer to this question: "Which film star is married to Goldie Hawn? " -
Movie Quiz
What is the last movie you have seen?
Average Score: 897% knows the answer to this question: "Which of these actresses is regarded as a sex symbol of the 1960s? " -
Movie Quiz
What movie has your best memory?
Average Score: 8100% knows the answer to this question: "You call that a knife? What movie, starring Paul Hogan, got men bragging about the size of their knives? " -
Only 10% can complete all 10 of these movie titles
Movie Title Quiz
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Movies: 10 Daunting Questions
We hope you have watched enough movies
Average Score: 9100% knows the answer to this question: "The film "Jack the Giant Slayer" is a retelling of what tale? " -
Crazy Quiz About Movies!
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Average Score: 9100% knows the answer to this question: "Finish this famous movie title, "All About ___ ". "
Math Quizzes
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Math Quiz
Only those who are good with numbers stand a change!
Average Score: 894% knows the answer to this question: "How many feet long is a 100-yard football field? " -
Mathematics Quiz
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Average Score: 7100% knows the answer to this question: "Cans of soup are 45p. If I buy 3 cans on a 3 for 2 offer, what is the real price per can? " -
HARD Math Quiz
Do you know the answer to this riddle?
Average Score: 8100% knows the answer to this question: "What is 33 plus half a century? " -
Math Quiz
We hope you're smart enough for these questions
Average Score: 8100% knows the answer to this question: "If you eat 23 sweets from a tub that contains 687 how many sweets do you have left? " -
Math IQ Test
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Average Score: 9100% knows the answer to this question: "If it snows 1 inch per hour for 2 days, how many inches of snow is that? " -
Math Quiz
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Math Quiz
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Average Score: 895% knows the answer to this question: "How many feet long is a 100-yard football field? " -
Math Quiz
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Challenging Math Quiz
You aren't smart enough to score a solid 10!
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Extremely Hard History Quiz, most people score only 3 out of 10.
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Movies Quiz
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How much do you know about food and beverages?