We dare you to take this challenging quiz!

Question 1 of 10

What country blamed the Aswan High Dam for an outbreak of schistosomiasis, since the dam stopped droughts that once stopped the disease?

Question 2 of 10

Possibly intending it as a joke, who is credited with first suggesting daylight saving time in the 1780s?

Question 3 of 10

As the name suggests, what kind of lamp is filled with such gasses as iodine and bromine?

Question 4 of 10

Unless you're reading this in 2017, the last total eclipse of the sun visible in the United States was in 1991. Where?

Question 5 of 10

In a navy, what does a destroyer typically destroy?

Question 6 of 10

Vermillion, a reddish orange pigment, once came from what mercury ore, found near volcanoes and hot springs?

Question 7 of 10

What colorful scale is measured with the Forel-Ule scale?

Question 8 of 10

Hiro Nakamura and Nightcrawler would be impressed. They didn't even need Harry Potter's Floo Network. What did physicists apparently do to a photon's quantum state in 1998?

Question 9 of 10

Running from 1959 to 1963, which of these NASA missions came first?

Question 10 of 10

Now-extinct aurochs have also been recreated genetically. What food might you have made with auroch?

Who Sang Quizzes

Who Sang These Songs?

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90% knows the answer to this question: "Who sang "Great Balls of Fire" (1957)? "
Who Sang These Songs?

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99% knows the answer to this question: "Who sang the song, "Then He Kissed Me" (1963)? "
Who Performed This Hit?

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96% knows the answer to this question: "Which rock pioneer shook the world with “Heartbreak Hotel” (1956)? "
We are looking for the artists who sang these songs

What is your go-to music for relaxing?

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24% knows the answer to this question: "Who sang the song, "Rockin’ Me" (1976)? "
Who Sang These Songs?

Do you sing-a-long?

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44% knows the answer to this question: "Who performed “Sailing” in 1979? "
Who Sang These Songs?

Who is your favorite singer?

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56% knows the answer to this question: "Who sang the famous song "Twist And Shout" (1963)? "

General Knowledge Quizzes

Challenging Knowledge Trivia

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10 Questions for Geniuses

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IQ Test

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Knowledge Quiz: Sudden Death Edition

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10 General Knowledge Questions

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Math Quizzes

Math Quiz

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90% knows the answer to this question: "What is twenty times twenty? "
Math IQ Test

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29% knows the answer to this question: "If it snows 1 inch per hour for 2 days, how many inches of snow is that? "
Mathematics Quiz

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40% knows the answer to this question: "How many CD racks does it take to hold 300 CDs if each rack holds 75 CDs? "
Math Quiz

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67% knows the answer to this question: "180+124+68 equals what number? "
Math Quiz

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67% knows the answer to this question: "What is 10% of 1,000? "
Mathematics Quiz

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66% knows the answer to this question: "What is the total of 101 + 73 + 16? "