THE KNOWLEDGE FEED

Geologists believe that about half the unmined gold in the world is in South Africa.

Geologists believe that about half the unmined gold in the world is in South Africa.

You Forgot Already: A 2010 Quiz

Questions:15
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Pass rate:75 %
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Oh sure, you can talk about any news story that's happening on any given day. But what happens when something else captures the headlines? We're going to take you back through the best (and worst) of 2010 to see how much you really retained this year.

5 Questions: DUCKS GET DOWN

Questions:5
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Pass rate:75 %
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Mint Condition: A Baseball Card Quiz

Questions:12
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Pass rate:75 %
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Dave Jamieson is an award-winning journalist and an old friend of mental_floss. To promote his new book Mint Condition: How Baseball Cards Became an American Obsession, he put together a quiz for us on baseball card history.

5 Questions: THE "STANDARD" QUIZ

Questions:5
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Pass rate:75 %
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The Golden Age of Broadway Musicals

Questions:13
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Pass rate:75 %
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Oh, the world of yesteryear musicals! Strangers break into spontaneous song and dance in the street, and naturally, everyone knows the lyrics and choreography. If wanting to live in that world is wrong, I don’t want to be right. Whether you saw the original productions (or, more likely, a revival), or own the film versions on worn-out VHS tapes, true fans know that The Golden Age of Broadway (c. 1943-1968) blessed us with classic, yet sometimes ridiculous tunes. How well do you know your soundtracks?

Studies in space have shown that birds cannot survive in weightless environments since they require gravity in order to swallow food.

Studies in space have shown that birds cannot survive in weightless environments since they require gravity in order to swallow food.

5 Questions: ARTSY

Questions:5
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Pass rate:75 %
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Leslie Nielsen's father was a Canadian Mountie and his brother was a member of Canadian Parliament.

Leslie Nielsen's father was a Canadian Mountie and his brother was a member of Canadian Parliament.

The M.C. in M.C. Escher stands for Maurits Cornelis.

The M.C. in M.C. Escher stands for Maurits Cornelis.

Was He a Super Bowl MVP?

Questions:11
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Pass rate:75 %
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We've collected 11 NFL stars—some of them won a Super Bowl MVP award, some fell just short. Can you identify the MVPs?

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