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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History Quizzes
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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Elementary School History Quiz
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Average Score: 8
100% knows the answer to this question:
"Who killed Abraham Lincoln in 1865?
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You think you know your History?
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97% knows the answer to this question:
"President Antonio Segni resigned as the leader of what European country in 1964?
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History Quiz
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98% knows the answer to this question:
"How old was Prince Harry when his mother died?
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History Test
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"In which state did Rosa Park refuse to give up her bus seat to a white passenger?
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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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10 questions about history!
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Average Score: 8
100% knows the answer to this question:
"What was the name of the US's first music chart, which started recording sales in August 1958?
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Very Hard History Quiz
Only people with an IQ of 140+ will score a 10
Average Score: 6
92% knows the answer to this question:
"Advertising of which product was banned from UK television in 1965?
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Very Hard History Quiz
Only people with an IQ of 140+ will score a 10
Average Score: 8
99% knows the answer to this question:
"What is a depository containing historical records and documents?
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Geography Quizzes
Geography Quiz
Find out if you belong to the 1%
Average Score: 9
100% knows the answer to this question:
"What breed of dogs originated in Afghanistan?
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Geography Quiz
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Average Score: 9
99% knows the answer to this question:
"After whom was the US capital Washington, D.C. named?
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Geography quiz. Level Impossible.
Dare to share?
Average Score: 8
100% knows the answer to this question:
"The Harrods department store is in the Knightbridge neighborhood of which city?
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Challenging Geography Quiz
We hope you can handle this quiz!
Average Score: 9
100% knows the answer to this question:
"Which of these countries has a population of over 1.2 billion?
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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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HARD Geography Quiz
This really is a hard one!
Average Score: 6
100% knows the answer to this question:
"Malta achieved independence from which European country in 1964?
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Geography Quiz
Who dares to share his score in the comments?
Average Score: 9
100% knows the answer to this question:
"France shares a border to the south with which European Country?
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Geography Knowledge Trivia Quiz
Not a single soul will score a 10
Average Score: 8
96% knows the answer to this question:
"The river Nile is located on which continent?
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Challenging Geography Quiz
We hope you can handle this quiz!
Average Score: 9
100% knows the answer to this question:
"If you were in Florida, which of these cities might you be in?
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Music Quizzes
Impossible Music Quiz
This quiz is way too hard for you!
Average Score: 8
99% knows the answer to this question:
"Who sings 'Hound Dog'?
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Music Quiz
Have you ever been to a concert?
Average Score: 9
99% knows the answer to this question:
"Davy Jones was the lead singer in which band?
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10 famous songs, 10 unfinished titles
Take Quiz
Average Score: 8
100% knows the answer to this question:
"'Viva ____'
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Music Quiz For Intelligent People
Are you smart enough?
Average Score: 7
100% knows the answer to this question:
"After a brief mid-career effort to play for the Detroit Lions, who included two of the Lions (Mel Farr and Lem Barney) portraying party-goers in the background of "What's Going On"?
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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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Challenging Music Quiz
We challenge you to score a 6 or higher
Average Score: 7
86% knows the answer to this question:
"According to the famous song, where does John Brown's body lie?
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Music Quiz
Can you do better than a 5 out of 10?
Average Score: 7
100% knows the answer to this question:
"What is a group of four performers called?
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Very Hard Music Quiz
10 Questions
Average Score: 6
100% knows the answer to this question:
"What classic song contains the lyrics "And the forests will echo with laughter.."?
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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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Science Quizzes
Most people can't even score 5 out of 10 in this science quiz
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Average Score: 9
100% knows the answer to this question:
"What is the addictive chemical in cigarettes?
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HARD Science Quiz
We hope you're smart enough to score a 7+
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100% knows the answer to this question:
"HP and IBM are brands of which product?
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Are you a scientist?
Proof by beating her score!
Average Score: 7
100% knows the answer to this question:
"What type of drug causes an increase in urination?
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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
Nobody can score a perfect 10
Average Score: 10
100% knows the answer to this question:
"In weather terms, what is the opposite of heat?
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Science Quiz
We really think scoring higher than a 6 is impossible
Average Score: 9
96% knows the answer to this question:
"When introduced by Raytheon, what appliance was originally called the Radar Range?
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Science Quiz
A score higher than a 6 is impossible
Average Score: 10
100% knows the answer to this question:
"Horseshoes are usually made from what?
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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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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
Can you score a 6 or better ?
Do you remember who sang this song?
Average Score: 9
100% knows the answer to this question:
"Who sang the famous song "Thriller" (1983)
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Who Sang These Songs?
Good luck playing!
Average Score: 9
97% knows the answer to this question:
"Who sang the famous song "Green Green Grass Of Home" (1966) ?
"
Who Sang These Famous Classic Rock Songs?
What's your favorite classic rock hit? Let us know in the comments!
Average Score: 8
100% knows the answer to this question:
"Who sang the famous song "(I Can't Get No) Satisfaction" (1965)?
"
Who Sang These Songs From The 70s?
10 hard questions
Average Score: 9
100% knows the answer to this question:
"Who sang the famous song "Fernando" (1975) ?
"
Who Sang These Songs
Did you know more than 5 songs?
Average Score: 9
100% knows the answer to this question:
"Who sang the famous song "You Make Me Feel Like A Natural Woman" (1967) ?
"
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
100% knows the answer to this question:
"Who sang the famous song "Sunny Afternoon" (1966) ?
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Who Sang These Songs From The 70s?
10 hard questions
Average Score: 8
98% knows the answer to this question:
"Who sang the famous song "Fernando" (1975) ?
"
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) ?
"
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Food & Beverage Quizzes
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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Challenging Food & Beverages Quiz
We challenge you to beat her score!
Average Score: 7
99% knows the answer to this question:
"Placing a green tomato into a paper bag helps it to do what?
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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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Food & Beverages Quiz
Did you top a 6? Please tell us!
Average Score: 8
100% knows the answer to this question:
"Where would you find mussels?
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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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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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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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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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Challenging Food Quiz
We bet you're not a true chef!
Average Score: 9
98% knows the answer to this question:
"Known for its sweet, deep-red flesh, what orange mutation probably first appeared in 17th century Sicily?
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General Knowledge Quizzes
Not a single person scored a 10 yet
General Knowledge Quiz
Average Score: 8
99% knows the answer to this question:
"How do you write 0.149 as a fraction?
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Impossible Mixed Trivia
We dare you to score a perfect 10
Average Score: 7
97% knows the answer to this question:
"On which continent did World War I begin?
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Extreme Hard Test
Scoring higher than a 4 seems impossible!
Average Score: 5
100% knows the answer to this question:
"What was the name of Lebanese singer Melhem Zein's first album?
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Challenging Knowledge Trivia
This is one hard trivia quiz for you!
Average Score: 8
100% knows the answer to this question:
"The Great Wall is to be found in which country?
"
Can you do better than a 7/10?
10 Questions for Smart Quizzers
Average Score: 7
100% knows the answer to this question:
"What colour skin do cartoon family the Simpsons have?
"
10 Challenging Questions
How many questions. did you answer correctly?
Average Score: 7
95% knows the answer to this question:
"A worldwide stock market crash of 1987 became known as which Monday?
"
Mixed Trivia
Can you beat his score?
Average Score: 8
100% knows the answer to this question:
"Which islands made the headlines in 1982 when they were invaded by Argentina?
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General Knowledge Quiz
Test your trivia limits
Average Score: 7
97% knows the answer to this question:
"A Goodyear factory was opened in Luxembourg in 1950 to make which type of product?
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Quiz about General Knowledge
Are you smart enough to score a perfect 10?
Average Score: 8
99% knows the answer to this question:
"Emperor Jiajing ruled in which country?
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Literature Quizzes
Literature Quiz
We challenge you to score an 8+
Average Score: 7
99% knows the answer to this question:
"Which one of these means an animal's poisonous fluids?
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Literature Quiz
How much knowledge have you stored in your brain about Literature?
Average Score: 6
84% knows the answer to this question:
"Which king said "A horse, a horse! my kingdom for a horse!"?
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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
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 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?
"
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?
"
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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Movie Quizzes
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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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)
"
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?
"
10 Questions about popular movies
Start Movie Quiz
Average Score: 8
100% knows the answer to this question:
"In which film did Robin Williams dress up as a Scottish nanny?
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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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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?
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Movie Quiz
Click to start this quiz
Average Score: 7
99% knows the answer to this question:
"How would you categorise the film The Texas Chainsaw Massacre?
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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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Quiz about Movies
What is the last movie you saw?
Average Score: 8
99% knows the answer to this question:
"What animated movie is based on "The Snow Queen" by Hans Christian Andersen?
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Math Quizzes
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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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?
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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?
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No one can score a 7 or better
Math Test
Average Score: 9
97% knows the answer to this question:
"Which is the largest number?
"
Mathematics Quiz
What did you score? Let us know in the comments
Average Score: 7
100% 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?
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Math Quiz
We hope you can do better than a simple 5
Average Score: 9
99% knows the answer to this question:
"180+124+68 equals what number?
"
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?
"
SUDDEN DEATH QUIZ
Try to stay on your feet!
Average Score: 0
0% knows the answer to this question:
"How fast do you need to travel to go 150 miles in 3 hours?
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Math Quiz
Only those who are good with numbers stand a change!
Average Score: 9
100% knows the answer to this question:
"What is 123 times 4?
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Who or what am I?
Can you beat the score of this nurse?
Everybody likes music, but how much do you know about it?