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?
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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?
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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?
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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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Mathematical quiz.
Can you do better than a 7 out of 10?
Average Score: 9
100% knows the answer to this question:
"What is the difference between 12 and 3?
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And do you know the answer to this one?
"What is the largest single digit number?"
100% knows the answer to this question:
"In which century was pioneering nurse and heroine of the Crimean War Mary Seacole born?
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History Knowledge Quiz
What did you score? Please let everyone know in the comments
Average Score: 8
100% knows the answer to this question:
"How old was Ronald Reagan when he died on June 5, 2004?
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Quiz about History
How many retries did you need?
Average Score: 7
100% knows the answer to this question:
"Which of these is a real book release from 2015, the latest in a long running series?
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Challenging Quiz About History
Are you smart enough for this quiz?
Average Score: 8
100% knows the answer to this question:
"Which of these is actually a famous battle in history?
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History Quiz
Are you able to score a perfect 10?
Average Score: 9
99% knows the answer to this question:
"How old was Prince Harry when his mother died?
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History Sudden End Quiz
Who is able to make it to the end?
Average Score: 0
0% knows the answer to this question:
"Who died in a Concentration Camp?
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History Quiz
Try scoring a 7+
Average Score: 8
98% knows the answer to this question:
"Geli Raubal had commited suicide on September 18th 1931, but who was her well known uncle?
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Difficult History Test
Take the test and show off your score
Average Score: 9
100% knows the answer to this question:
"Tony Blair is best known for holding what political position?
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History Test
We bet you aren't smart enough for this one!
Average Score: 8
98% knows the answer to this question:
"What is the name of the waterproof item of clothing which is named after the Scotsman who started selling it in 1824?
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Geography Quizzes
Geography Quiz
You won't score a 6 or higher!
Average Score: 7
100% knows the answer to this question:
"With 1,000 plus rooms, what is the largest inhabited castle in the world?
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10 Geography Questions
Where did you go?
Average Score: 9
100% knows the answer to this question:
"In which country would tourists visit Ayers Rock?
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Only an Aussie can score a perfect 10 in this quiz!
Play Now
Average Score: 8
100% knows the answer to this question:
"By what name are Australian women known generically?
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Are you smarter than this geographer?
Geography Quiz
Average Score: 8
99% knows the answer to this question:
"Which city is a key town for the Muslim, Jewish and Christian faiths?
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What was your last travel destination?
HARD Geography Quiz
Average Score: 6
100% knows the answer to this question:
"Dionysus was the Greek God of what?
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Play This Geography Quiz Now!
It's going to be impossible to score a 6+
Average Score: 6
100% knows the answer to this question:
"Which country lies directly south of Mongolia?
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Geology Quiz - How Much Do You Know?
Test Your Knowledge and See if You're Up to the Challenge
Average Score: 9
99% knows the answer to this question:
"On which body of water will surfers at Newquay catch the wave?
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Quiz on Geography
Good luck making this fun quiz!
Average Score: 9
100% knows the answer to this question:
"In what city would you find Hyde Park, as well as Piccadilly, Trafalgar and Belgrave squares?
"
Have you ever been to Japan?
HARD Geography Quiz
Average Score: 6
100% knows the answer to this question:
"In what country was Citroen founded in 1919?
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Music Quizzes
Quiz about Music
Only real music fans score a decent 7+
Average Score: 9
100% knows the answer to this question:
"Which of these was a hit single for The Mamas & the Papas in 1966?
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How often do you listen to music?
HARD Music Quiz
Average Score: 7
100% knows the answer to this question:
"Coolio reworked Stevie Wonder's "Pasttime Paradise," turning it into what song?
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Escape from reality and play this hard music quiz
Start Here
Average Score: 7
93% knows the answer to this question:
"Paul Westerberg was the front man for which band originally named The Impediments?
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Challenging Music Quiz
We challenge you to score a 7+
Average Score: 7
100% knows the answer to this question:
"Italian Luciano Pavarotti was part of which music group?
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Play Music Quiz
We bet you're not a musician!
Average Score: 9
100% knows the answer to this question:
"Which record company was founded in Detroit by Berry Gordy, Jr, a former boxer, who applied many of the business techniques he'd seen working on the Ford assembly line?
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Music Quiz
How often do you listen to music?
Average Score: 8
100% knows the answer to this question:
"Which of these groups would you most associate with Diana Ross?
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Challenging Music Quiz
We challenge you to do better than a 5 out of 10
Average Score: 8
99% knows the answer to this question:
"Who "stuck a feather in his hat and called it macaroni"?
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Play this music quiz by clicking here
And tell us what you scored. We hope you did good!
Average Score: 9
100% knows the answer to this question:
"Help was a hit song of which band?
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Think you know your Beatles from your Stones?
Can you beat your friends' scores?
Average Score: 8
100% knows the answer to this question:
"Which band's drummer had the nickname "Ringo"?
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Science Quizzes
Science Quiz
Try scoring a perfect 10
Average Score: 10
100% knows the answer to this question:
"Poodle, collie, beagle and golden retriever are all types of what animal?
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Can you score a perfect 10 in this Science quiz?
10 questions
Average Score: 9
100% knows the answer to this question:
"What is removed during an appendectomy?
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Science Quiz
Prove you're a real scientist by scoring a 10
Average Score: 9
99% knows the answer to this question:
"Torald Sollmann tried to find an antidote to what horrific gas ... by spraying himself with it?
"
Don't bother beating my score
Science Quiz
Average Score: 7
84% knows the answer to this question:
"What do we call the teeth we grind our food with?
"
Don't bother beating my score
Science Quiz
Average Score: 7
100% knows the answer to this question:
"What do we call the teeth we grind our food with?
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Mad Science Quiz
Can you do better than a 7?
Average Score: 8
100% knows the answer to this question:
"When you shuffle along carpets on dry days, the friction builds up your negative charge, which is attracted to the positive charge on a doorknob. What does that produce?
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Quiz For Scientists
Have you ever entered a science fair?
Average Score: 9
100% knows the answer to this question:
"Alexander Graham Bell and his assistant were the first two people to use this invention, but First Lady Lucy Hayes was the third. What?
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Show us your score and you get mad respect
Hard Science Quiz
Average Score: 9
98% knows the answer to this question:
"Thrust moves a plane forward. What force holds it back?
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Nobody can score higher than a lousy 5
Science Quiz
Average Score: 7
90% knows the answer to this question:
"What do we call the teeth we grind our food with?
"
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Who Sang Quizzes
Who Sang These Songs?
You will not score higher than a 4
Average Score: 7
100% knows the answer to this question:
"Who sang the song, "Gangnam Style"?
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Who Sang These Psychedelic Rock Songs?
How many rock songs did you know?
Average Score: 8
99% knows the answer to this question:
"Who sang the famous song "Good Vibrations" (1966)?
"
60's music quiz
You won't score a perfect 10
Average Score: 8
92% knows the answer to this question:
"Who sang the famous song "Sunny Afternoon" (1966) ?
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Who Sang These Songs?
No is able to score higher than a 6
Average Score: 9
97% knows the answer to this question:
"Who sang the famous song "Starman" (1972)
"
Who Sang These Songs? - Sudden End Style
How many songs didn't you know?
Average Score: 0
0% knows the answer to this question:
"Who sang the famous song "I Left My Heart in San Francisco" (1962)?
"
60's music quiz
You won't score a perfect 10
Average Score: 8
100% knows the answer to this question:
"Who sang the famous song "Sunny Afternoon" (1966) ?
"
Who Sang These Disco Songs
How many disco songs did you know?
Average Score: 8
99% knows the answer to this question:
"Who sang the famous song "Y.M.C.A." (1978)?
"
Who sang the famous song "Hey Jude" (1968) ?
If you know the answer, make sure you check out this quiz, you might score a perfect 10
Average Score: 9
100% knows the answer to this question:
"Who sang the famous song "Hey Jude" (1968) ?
"
Who Sang These Songs?
Please tell us if you know more than 6 songs
Average Score: 9
100% knows the answer to this question:
"Who sang the famous song "Imagine" (1971) ?
"
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Food & Beverage Quizzes
Food and Beverage Quiz
Who is able to score higher than a lousy 4? Share if you did
Average Score: 9
100% knows the answer to this question:
"Which animal's meat is referred to as mutton, particularly when the animal is an adult?
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Test Your Culinary Knowledge with this Delicious Quiz
Show Off your result in the comments
Average Score: 10
100% knows the answer to this question:
"A cucumber preserved in vinegar or salt is called what?
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Food & Beverages Quiz
We challenge you to score higher than a lousy 5
Average Score: 9
100% knows the answer to this question:
"Also called pieplant, what tart pink vegetable is often used as a pie filling?
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Unknown Fruit Quiz
No one scores a 6 or more in this unknown fruit quiz!
Average Score: 7
100% knows the answer to this question:
"What is the name of this unknown fruit?
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Food and Beverage Quiz
10 questions but you won't get them all correctly!
Average Score: 9
100% knows the answer to this question:
"By what name is Beijing kao ya better known in the West?
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10 fun questions about food you probably can't answer
Food Quiz
Average Score: 9
100% knows the answer to this question:
"What food group do oatmeal, brown rice and whole wheat belong to?
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Challenging Food Quiz
10 HARD questions about food & beverages
Average Score: 6
100% knows the answer to this question:
"if you order Chateaubriand, what type of meat will you be served?
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Food and Beverage Quiz
10 questions but you won't get them all correctly!
Average Score: 9
100% knows the answer to this question:
"What second largest island in the Mediterranean are canned herrings named for?
"
Challenging Food & Beverages Quiz
We challenge you to beat his score!
Average Score: 8
100% knows the answer to this question:
"Pop tarts can be heated in which of the following?
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General Knowledge Quizzes
Smart enough to score a perfect 10?
This Quiz is Impossible
Average Score: 7
100% knows the answer to this question:
"Who won the Oscar for Best Actor in 1975, playing Randle Patrick McMurphy in One Flew Over the Cuckoo's Nest?
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For smart people only
Mixed Trivia Quiz
Average Score: 6
100% knows the answer to this question:
"In 2005, Prince Charles married what woman?
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Quite Impossible Quiz
Dare to try?
Average Score: 7
100% knows the answer to this question:
"2835+1894+953 equals what number?
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General Knowledge Quiz
Are you incredible?
Average Score: 6
100% knows the answer to this question:
"Which of these is NOT native to Britain?
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General Knowledge Quiz
We dare you to take this quiz and share your score
Average Score: 8
100% knows the answer to this question:
"Gold sells for £785 per ounce. How much is a ring weighing 13 ounces worth?
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Impossible Knowledge Quiz
Are you smarter than the rest? Prove us!
Average Score: 7
97% knows the answer to this question:
"Peel and Ramsey are towns in the Isle of ....?
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This quiz is impossible
What did you score?
Average Score: 8
98% knows the answer to this question:
"What name was given to priests in the time of the ancient Celts?
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Trivia Quiz For Geniuses
Are you a genius? Prove us by scoring at least a 9
Average Score: 8
100% knows the answer to this question:
"Louis Armstrong is well-known for playing which instrument?
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HARD General Knowledge Quiz
You definitely won't score a perfect 10
Average Score: 7
100% knows the answer to this question:
"What does the '.com' stand for in an internet domain name ending with .com?
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Literature Quizzes
Tell us, what do you really know about literature?
We think not enough to get more than 4 answer correctly!
Average Score: 6
100% knows the answer to this question:
"What John Spyri story is about a girl who lives in the Alps?
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Literature Quiz
How much knowledge have you stored in you brain about Literature?
Average Score: 7
96% knows the answer to this question:
"What word means to award compensation to?
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Literature Quiz
Who is your favorite author?
Average Score: 8
99% knows the answer to this question:
"In "Robinson Crusoe", where is Robinson Crusoe stranded?
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Literature Test
What did you score? Share below if you dare!
Average Score: 8
100% knows the answer to this question:
"Who wrote the comedy "Midsummer Night's Dream"?
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Literature Quiz
Who of our quizzers can get a perfect 10? Share below!
Average Score: 8
100% knows the answer to this question:
"What classic novel did D. H. Lawrence write in 1928?
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Movie Quizzes
Crazy Quiz About Movies!
Nobody will be able to score a 7+
Average Score: 9
100% knows the answer to this question:
"Finish this famous movie title, "All About ___ ".
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HARD Movie Quiz
Enjoy and share your score below in the comments
Average Score: 6
100% knows the answer to this question:
"The Turning is a modern take on what novella?
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Movies: 10 Daunting Questions
We hope you have watched enough movies
Average Score: 9
100% knows the answer to this question:
"The film "Jack the Giant Slayer" is a retelling of what tale?
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Only 10% can complete all 10 of these movie titles
Movie Title Quiz
Average Score: 10
100% knows the answer to this question:
"Planet of the …..
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Movie Quiz
What is the last movie you have seen?
Average Score: 8
97% knows the answer to this question:
"Which of these actresses is regarded as a sex symbol of the 1960s?
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10 Hard Movie Questions
What is the last movie you have seen?
Average Score: 7
98% knows the answer to this question:
"Which film star is married to Goldie Hawn?
"
how often do you go to the movie theater?
Movie Quiz
Average Score: 7
99% knows the answer to this question:
"Marilyn Monroe starred in which of these classic movies?
"
Movie Quiz
What movie has your best memory?
Average Score: 8
100% 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?
"
It's highly doubtful you can complete even half of these movie titles in this quiz.
Movie Quiz
Average Score: 9
100% knows the answer to this question:
"One Flew Over the Cuckoo's "..." (1975)
"
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Math Quizzes
Math Quiz
Absolutely no one scores higher than a 5
Average Score: 8
100% knows the answer to this question:
"What is an estimate?
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Math Quiz
Are you real mathelete? Let us know below!
Average Score: 8
100% knows the answer to this question:
"Which is the correct spelling?
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Mathematics Quiz
Are you a real mastermind in mathematics?
Average Score: 7
100% knows the answer to this question:
"It was 13 degrees this morning and the temperature dropped 12 degrees, what is the temperature now?
"
Nobody will score higher than a 4
Because nobody is as smart as Einstein!
Average Score: 6
85% knows the answer to this question:
"What is a polynomial with two terms called?
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Challenging Math Quiz
You aren't smart enough to score a solid 10!
Average Score: 8
100% knows the answer to this question:
"76 plus 36 gives which result?
"
Can you solve this?
go to Math Quiz
Average Score: 9
100% knows the answer to this question:
"If a five day vacations costs 2500 dollars, how much does each day cost?
"
Math IQ Test
Do you know the answer?
Average Score: 9
100% 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
Only those who are good with numbers stand a change!
Average Score: 8
99% knows the answer to this question:
"What is the total of 25 + 53 + 32?
"
Mathematics Quiz
Do you know the answer?
Average Score: 9
98% knows the answer to this question:
"How many CD racks does it take to hold 300 CDs if each rack holds 75 CDs?
"
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Extremely hard mixed knowledge quiz, how many did you answer correctly?
Can you beat the score of this nurse?
Try this Proverbs quiz and see if you can find the missing word!