Problem: Charleston, South Carolina:

Colonial Lowcountry landowners experimented with cash crops ranging from tea to silkworms. African slaves brought knowledge of rice cultivation, which plantation owners cultivated and developed as a successful commodity crop by 1700. With the coerced help of African slaves from the Caribbean, Eliza Lucas, daughter of plantation owner George Lucas, learned how to raise and use indigo in the Lowcountry in 1747. Supported with subsidies from Britain, indigo was a leading export by 1750. Those and naval stores were exported in an extremely profitable shipping industry.

African slaves had no knowledge of the cultivation of what product?
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A: unanswerable


Problem: Alps:

In modern languages the term alp, alm, albe or alpe refers to a grazing pastures in the alpine regions below the glaciers, not the peaks. An alp refers to a high mountain pasture where cows are taken to be grazed during the summer months and where hay barns can be found, and the term "the Alps", referring to the mountains, is a misnomer. The term for the mountain peaks varies by nation and language: words such as horn, kogel, gipfel, spitz, and berg are used in German speaking regions: mont, pic, dent and aiguille in French speaking regions; and monte, picco or cima in Italian speaking regions.

The term alp, alm, albe or alpe refers to what in modern languages? 
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A: a grazing pastures in the alpine regions below the glaciers, not the peaks


Problem: Washington University in St. Louis:

Olin has a network of more than 16,000 alumni worldwide. Over the last several years, the school’s endowment has increased to $213 million (2004) and annual gifts average $12 million per year.[citation needed] Simon Hall was opened in 1986 after a donation from John E. Simon. On May 2, 2014, the $90 million conjoined Knight and Bauer Halls were dedicated, following a $15 million gift from Charles F. Knight and Joanne Knight and a $10 million gift from George and Carol Bauer through the Bauer Foundation.

How much did the Bauer Hall cost to build?
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A: unanswerable


Problem: Mandolin:

Phil Skinner played a key role in 20th century development of the mandolin movement in Australia, and was awarded an MBE in 1979 for services to music and the community. He was born Harry Skinner in Sydney in 1903 and started learning music at age 10 when his uncle tutored him on the banjo. Skinner began teaching part-time at age 18, until the Great Depression forced him to begin teaching full-time and learn a broader range of instruments. Skinner founded the Sydney Mandolin Orchestra, the oldest surviving mandolin orchestra in Australia.

 At what age did Phil Skinner stop playing music?
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A:
unanswerable