Try not to cry when you do this impossible Science quiz!
Question 1 of 10
In 1962, Yukio Horie invented the first practical fiber-tip pen to accommodate which country's system of writing?
Question 2 of 10
As cities get crowded with phones, they can shoehorn in new overlay area codes. The first one, in 1992, was 917. Where?
Question 3 of 10
Named for a North African coast, what now extinct sub-species of lion was used in the Roman arena?
Question 4 of 10
Superconductors lose their electrical resistance. How do you get them to do this?
Question 5 of 10
Most large freshwater lakes are in the rift valleys between tectonic plates. Which one is in the Great Rift Valley?
Question 6 of 10
When really big stars die, they blow up as a supernova, spreading debris all over the place. What does this debris become?
Question 7 of 10
How many sides does a dodecagon have?
Question 8 of 10
What percentage of acetic acid is legally allowed in vinegar?
Question 9 of 10
What are organic compounds in which some of the bonding elements are delocalized?
Question 10 of 10
What Central American bird (and national symbol) has a tail so long that the only safe way it can fly off a branch is by jumping backward first?
Who Sang Quizzes
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Who Sang These Songs From The 60s, 70s & 80s?
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Who Sang These Hits From 1979?
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Music Quiz For Music Geniuses
Who Sang These Songs?
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Who Sang These Songs?
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Who sang these songs?
Question 5 is impossible
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Impossible Music Quiz
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History Quizzes
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10 Historical Trivia Questions
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70s Nostalgia Quiz
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History Quiz
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History Quiz
10 Questions
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Geography Quiz
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Geography Quiz
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Geography Quiz
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Geography Quiz
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10 Question About Planet Earth
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Music Quizzes
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Music Quiz
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Music Quiz
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Music Quiz
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Challenging Music Quiz.
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Challenging Music Quiz
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Very Hard Music Quiz
10 Questions
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Science Quizzes
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Mad Science Quiz
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Science Quiz
10 Questions
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Science Quiz
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Quiz on Science
Did you complete the mission?
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Science Quiz
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Did you know this weird thing about Elon musk?
Elon Musk Quiz
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Food & Beverage Quizzes
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Can you beat the highest score of a 6?
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Quiz About Food & Beverages
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Can you score at least 5 correct answers with this food en beverages quiz?
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This Food & Beverages is for the real food lovers, only a real cook can score 100% in this quiz!
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Not hungry? You will be soon!
Quiz About Food & Beverages
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Food & Beverages Quiz
Please share your score in the comments
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General Knowledge Quizzes
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Unbeatable Knowledge Quiz
Who is going to get past a hard 9?
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Prove you've scored higher than a 6
10 Knowledge Questions
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General Knowledge Quiz
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Challenging Trivia Quiz
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10 Questions to test your Limits
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Difficult Knowledge Quiz
You will also fail at question 9
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Literature Quizzes
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Tag a bookworm who would love this quiz!
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Literature Quiz
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Can you get a 6 or higher in this Literature quiz?
Average Score: 536% knows the answer to this question: "At John's Grill in San Francisco, you can still order chops, baked potato and sliced tomatoes, just as Sam Spade did in what book? " -
Only a real bookworm can answer these 10 questions correctly.
Average Score: 943% knows the answer to this question: "Fee-fi-fo-fum. The giant smells the blood of what Englishman? " -
10 questions about books, poems and their writers!
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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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Crazy Quiz About Movies!
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Movie Quiz
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Movie Quiz
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Average Score: 586% knows the answer to this question: "Which of these Disney feature films was released first? " -
Movie Quiz
We bet you will tap out!
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Movies: 10 Daunting Questions
We hope you have watched enough movies
Average Score: 943% knows the answer to this question: "The film "Jack the Giant Slayer" is a retelling of what tale? "
Math Quizzes
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Mathematics Quiz
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Math Quiz
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Math Quiz
Only those who are good with numbers stand a change!
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Math Quiz
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Math Examination
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Mathematics Quiz
Are you a real mastermind in mathematics?
Average Score: 738% knows the answer to this question: "It was 13 degrees this morning and the temperature dropped 12 degrees, what is the temperature now? "
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Literature Quiz
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Movies Quiz
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Extremely Hard History Quiz, most people score only 3 out of 10.