Problem: Samurai:

Despite the rampant romanticism of the 20th century, samurai could be disloyal and treacherous (e.g., Akechi Mitsuhide), cowardly, brave, or overly loyal (e.g., Kusunoki Masashige). Samurai were usually loyal to their immediate superiors, who in turn allied themselves with higher lords. These loyalties to the higher lords often shifted; for example, the high lords allied under Toyotomi Hideyoshi (豊臣秀吉) were served by loyal samurai, but the feudal lords under them could shift their support to Tokugawa, taking their samurai with them. There were, however, also notable instances where samurai would be disloyal to their lord or daimyo, when loyalty to the Emperor was seen to have supremacy.

Who was an example of a disloyal samurai?
---
A: Akechi Mitsuhide


Problem: Tibet:

In 1661 another Jesuit, Johann Grueber, crossed Tibet from Sining to Lhasa (where he spent a month), before heading on to Nepal. He was followed by others who actually built a church in Lhasa. These included the Jesuit Father Ippolito Desideri, 1716–1721, who gained a deep knowledge of Tibetan culture, language and Buddhism, and various Capuchins in 1707–1711, 1716–1733 and 1741–1745, Christianity was used by some Tibetan monarchs and their courts and the Karmapa sect lamas to counterbalance the influence of the Gelugpa sect in the 17th century until in 1745 when all the missionaries were expelled at the lama's insistence.

When did Jesuit Father Ippolito Desideri spend time in Tibet?
---
A: 1716–1721


Problem: Glass:

Fused quartz is a glass made from chemically-pure SiO2 (silica). It has excellent thermal shock characteristics, being able to survive immersion in water while red hot. However, its high melting-temperature (1723 °C) and viscosity make it difficult to work with. Normally, other substances are added to simplify processing. One is sodium carbonate (Na2CO3, "soda"), which lowers the glass transition temperature. The soda makes the glass water-soluble, which is usually undesirable, so lime (calcium oxide [CaO], generally obtained from limestone), some magnesium oxide (MgO) and aluminium oxide (Al2O3) are added to provide for a better chemical durability. The resulting glass contains about 70 to 74% silica by weight and is called a soda-lime glass. Soda-lime glasses account for about 90% of manufactured glass.

What is a benefit of chemical durability?
---
A: unanswerable


Problem: North Carolina:

Krispy Kreme, an international chain of doughnut stores, was started in North Carolina; the company's headquarters are in Winston-Salem. Pepsi-Cola was first produced in 1898 in New Bern. A regional soft drink, Cheerwine, was created and is still based in the city of Salisbury. Despite its name, the hot sauce Texas Pete was created in North Carolina; its headquarters are also in Winston-Salem. The Hardee's fast-food chain was started in Rocky Mount. Another fast-food chain, Bojangles', was started in Charlotte, and has its corporate headquarters there. A popular North Carolina restaurant chain is Golden Corral. Started in 1973, the chain was founded in Fayetteville, with headquarters located in Raleigh. Popular pickle brand Mount Olive Pickle Company was founded in Mount Olive in 1926. Fast casual burger chain Hwy 55 Burgers, Shakes & Fries also makes its home in Mount Olive. Cook Out, a popular fast-food chain featuring burgers, hot dogs, and milkshakes in a wide variety of flavors, was founded in Greensboro in 1989 and has begun expanding outside of North Carolina. In 2013, Southern Living named Durham - Chapel Hill the South's "Tastiest City."

Where was pepsi first produced?
---
A:
New Bern