Most of the oxygen in the air is produced by what chemical process?
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Question 2 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?
Question 3 of 10
Water freezes at what temperature?
Question 4 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 5 of 10
Which of these devices would you most likely use to listen to music?
Question 6 of 10
What country shares its name with an ink that is chemically inert, not affected by sunlight and virtually permanent?
Question 7 of 10
Which space probe landed on Mars in June 1999?
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Question 8 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 9 of 10
What happens to the pressure of water as depth under the water increases?
Question 10 of 10
The grandfather paradox is held up as one of the risks of what improbable science fiction activity?
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Who Sang Quizzes
Can you tell us who sang these songs?
Share you score below
Average Score: 9
51% knows the answer to this question:
"Who sang the song, "(Sittin’ on) The Dock of the Bay" (1968)?
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Who's the Voice Behind the Song?
We hope you know at least 6!
Average Score: 6
30% knows the answer to this question:
"Which doo-wop group scored big with “Get a Job” (1957)?
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Who Played These Legendary Songs?
Let us what you scored!
Average Score: 7
89% knows the answer to this question:
"Which rockabilly star made “Mack the Knife” (1959) famous?
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Who Sang These Songs?
Share if you scored higher
Average Score: 7
36% knows the answer to this question:
"Who turned “Ain’t No Sunshine” into a soulful hit in 1971?
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Who sang these songs from the 50s, 60s & 70s
Which decade do you love musically?
Average Score: 9
44% knows the answer to this question:
"Who sang the song, "Jailhouse Rock" (1957)?
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Which artists are we looking for?
Do you remember these songs?
Average Score: 7
87% knows the answer to this question:
"Who made “Tears in Heaven” a heartfelt classic in 1992?
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General Knowledge Quizzes
Is your IQ high enough?
IQ Test
Average Score: 6
24% knows the answer to this question:
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Difficult Knowledge Quiz
You will also fail at question 9
Average Score: 9
94% knows the answer to this question:
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General Knowledge Quiz
Sudden Death Edition
Average Score: 0
75% knows the answer to this question:
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General Knowledge Quiz
Are you a know-it-all?
Average Score: 5
22% knows the answer to this question:
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Put Your Knowledge to the Test
This quiz is too hard for most of us
Average Score: 6
68% knows the answer to this question:
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Quiz mixed with knowledge
Try proving us wrong!
Average Score: 4
38% knows the answer to this question:
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Math Quizzes
Mathematics Quiz
What did you score? Let us know in the comments
Average Score: 7
42% 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
Only those who are good with numbers stand a chance!
Average Score: 8
76% knows the answer to this question:
"What is 10% of 1,000?
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Math Quiz
Please let us know your score below
Average Score: 9
34% knows the answer to this question:
"What is 18 doubled?
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Mathematics Quiz
Nobody is able to score a perfect 10
Average Score: 9
33% knows the answer to this question:
"How many in a pair?
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Math Quiz
Only those who are good with numbers stand a change!
Average Score: 8
45% knows the answer to this question:
"How many feet long is a 100-yard football field?
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Mathematics Quiz
Try to stay on your feet!
Average Score: 9
57% knows the answer to this question:
"What is the total of 101 + 73 + 16?
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We bet you don't know a thing about who invented these things!
Everybody likes music, but how much do you know about it?