Most of the oxygen in the air is produced by what chemical process?
Advertisement
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?
Advertisement
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?
Advertisement
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?
Advertisement
History Quizzes
10 History Questions
Who knows enough for a 10/10
Average Score: 4
79% knows the answer to this question:
"What was one of the nicknames of the US's 369th Infantry Regiment?
"
80s Nostalgia Quiz
What videogame did you play in the 80s?
Average Score: 8
23% knows the answer to this question:
"Which 1980s movie features the iconic line, "Nobody puts Baby in a corner"?
"
1980s Nostalgia Quiz
Try scoring a 7 or higher
Average Score: 8
45% knows the answer to this question:
"What iconic video game was released in 1980 and featured a little yellow character gobbling up pellets while avoiding ghosts?
"
10 Questions about History
Do you like History Quizzes?
Average Score: 4
63% knows the answer to this question:
"What was the name of the chemical element created by the Berkeley University in March 1950?
"
Calling All History Buffs!
Can You Beat the Experts?
Average Score: 7
21% knows the answer to this question:
"Which treaty ended the Thirty Years' War in 1648?
"
History Quiz
Tell us your score below
Average Score: 4
61% knows the answer to this question:
"How many men did the German Army loose at the Battle of Amiens?
"
History Quiz
8 or higher? You're pretty smart!
Average Score: 4
81% knows the answer to this question:
"1953 tennis stars Maureen Connolly and Doris Hart were from which country?
"
History Quiz
Do you have what it takes?
Average Score: 5
39% knows the answer to this question:
"Which country won the 1958 FIFA World Cup in Sweden?
"
This History Quiz is Rough
Try scoring higher than a 5
Average Score: 4
60% knows the answer to this question:
"In 1945, what three letter construction manufacturer was founded?
"
Advertisement
Geography Quizzes
Geography Quiz
You're invited!
Average Score: 5
23% knows the answer to this question:
"What nationality is the explorer Vasco Nunez de Balboa?
"
Geography Quiz
Did you find your way to the last question?
Average Score: 4
58% knows the answer to this question:
"Fulham is in which London postcode?
"
Geography Quiz
Think you can find your way?
Average Score: 6
69% knows the answer to this question:
"One of the world's largest herds of what roam around the deserts of Australia?
"
Geography Quiz
Thumbs up when you score a 10/10
Average Score: 5
76% knows the answer to this question:
"What was the middle name of the explorer Captain Scott?
"
10 Question About Planet Earth
Did you score a 10? Let us know below!
Average Score: 6
99% knows the answer to this question:
"Which is the largest continent on Earth?
"
HARD Science Quiz
We hope you're smart enough to score a 7+
Average Score: 4
77% knows the answer to this question:
"What is the capital of Kentucky?
"
Advertisement
Music Quizzes
Alternative Rock Music Quiz
Have you ever heard of any of these bands?
Average Score: 5
27% knows the answer to this question:
"Which band released the influential alternative rock album "OK Computer" in 1997?
"
Barbra Streisand Quiz
Average Score: 4
50% knows the answer to this question:
"What is Barbra Streisand's middle name?
"
10 difficult questions about John Denver
Let us know your score in the comments
Average Score: 7
51% knows the answer to this question:
"What was John Denver's birth name?
"
Advertisement
Science Quizzes
Science Quiz with challenging questions
Who is able to score higher than an impossible 8?
Average Score: 8
93% knows the answer to this question:
"When a bit of sand gets trapped inside a shellfish, it fights the irritation with nacre, which it gets from calcite in seawater. What treasure results?
"
Quiz on Science.
Are you worthy of the respect?
Average Score: 7
31% knows the answer to this question:
"What sterile animal is produced when a male donkey breeds with a female horse?
"
Quiz on Science
Did you complete the mission?
Average Score: 9
34% knows the answer to this question:
"What is a young kangaroo called?
"
Advertisement
Who Sang Quizzes
Quiz on music from the 1960s.
You won't score a perfect 10
Average Score: 7
91% knows the answer to this question:
"Who sang the famous song "Suzie Q" (1968) ?
"
Motown Legends: Can You Name the Artist Behind These Hits?
Can you match the song to the Motown legend?
Average Score: 7
49% knows the answer to this question:
"Who sang the song, "Tracks of My Tears" (1965)?
"
Can you name the singers of these songs?
Do you know the artist of all these songs?
Average Score: 3
83% knows the answer to this question:
"Who sang the famous song "Marathon" (1985)?
"
Who Sang These Country Songs?
Question 10 is by far the hardest
Average Score: 8
64% knows the answer to this question:
"Who performed the hit "Ring of Fire" (1963)?
"
Which artist performed these songs?
Can you answer more than 4 questions correctly?
Average Score: 9
62% knows the answer to this question:
"Who sang the famous song ”She Loves You” (1963)?
"
Who were the singers of these songs?
Did you have all 10 songs correctly?
Average Score: 6
27% knows the answer to this question:
"Who sang the famous song "Under Pressure" (1981) ?
"
Who Sang These 90s Songs?
Feels like yesterday isn't it?
Average Score: 7
56% knows the answer to this question:
"Who sang the song, "Smells Like Teen Spirit" (1991)?
"
Who Sang These Folk & Americana Songs?
Is your favorite artist in this quiz? Take it and find out!
Average Score: 6
75% knows the answer to this question:
"Who sang the song, "The Times They Are A-Changin’" (1964)?
"
Can you recognize the vocalists of these songs?
Do you love to listen to music?
Average Score: 5
91% knows the answer to this question:
"Who sang the famous song ”Psycho Killer” (1977)?
"
Advertisement
Food & Beverage Quizzes
Quiz on Food and Beverage
What's your favorite pizza?
Average Score: 9
27% knows the answer to this question:
"
"
Food Quiz
What is your favorite Guilty Pleasure?
Average Score: 6
55% knows the answer to this question:
"
"
Advertisement
General Knowledge Quizzes
Impossible Knowledge Quiz
Strive for a 6 or higher
Average Score: 6
94% knows the answer to this question:
"
"
Trivia Quiz
An 8+ is considered genius
Average Score: 9
53% knows the answer to this question:
"
"
Knowledge Questions that are Difficult
Can you top a 4? We bet you can, but prove it!
Average Score: 5
99% knows the answer to this question:
"
"
Maintain mental stimulation.
We hope you have a great time making this quiz
Average Score: 9
96% knows the answer to this question:
"
"
Challenging General Knowledge Quiz
You're a genius if you scored better than a 7
Average Score: 7
94% knows the answer to this question:
"
"
Quiz that tests your knowledge in a challenging way.
Can you do better than a 5?
Average Score: 6
80% knows the answer to this question:
"
"
General Knowledge Quiz
We hope this one isn't a struggle for you
Average Score: 6
35% knows the answer to this question:
"
"
10 Questions About 10 Topics
Share your score!
Average Score: 5
55% knows the answer to this question:
"
"
Ultimate Mixed Trivia Quiz
It's a miracle if you're able to score a perfect 10
Average Score: 5
83% knows the answer to this question:
"
"
Advertisement
Literature Quizzes
Advertisement
Movie Quizzes
Movies & Series Quiz
Which TV series have you watched more than once?
Average Score: 8
74% knows the answer to this question:
"Which 1972 film, directed by Francis Ford Coppola, is an adaptation of Mario Puzo's novel and portrays the rise and near fall of a mafia family in America?
"
Movie Quiz
Have no fear the answer is here
Average Score: 5
25% knows the answer to this question:
"Which of these Disney feature films was released first?
"
Lights, Camera, Quotes!
Who can get a perfect 10? Share if you did!
Average Score: 8
60% knows the answer to this question:
" "Here's looking at you, kid."
"
Movie Quiz
We bet you will tap out!
Average Score: 5
74% knows the answer to this question:
"Karen Carpenter died of complications from which illness?
"
Rewind to the 70s: Movie Quiz
Which of these have you seen in the cinema?
Average Score: 8
82% knows the answer to this question:
"Who directed the movie, "The Godfather" (1972)?
"
Advertisement
Math Quizzes
Math Quiz
We hope you'll score higher than a 3+4
Average Score: 7
68% knows the answer to this question:
"40x41÷40 equals what number?
"
Math Examination
Try scoring a 7+
Average Score: 9
24% knows the answer to this question:
"How many inches are in a foot?
"
10 Math Questions
For you to solve
Average Score: 7
33% knows the answer to this question:
"Find the Highest Common Factor of these numbers - 38 and 57
"
Advertisement
General knowledge quiz
Literature Quiz
Very hard geography quiz, can you get more than 5 correct?