Problem: History of India:

The most significant event between the 7th and 11th century was the Tripartite struggle centered on Kannauj that lasted for more than two centuries between the Pala Empire, Rashtrakuta Empire, and Gurjara Pratihara Empire. Southern India was ruled by the Chalukya, Chola, Pallava, Chera, Pandyan, and Western Chalukya Empires. The seventh century also saw the advent of Islam as a political power, though as a fringe, in the western part of the subcontinent, in modern-day Pakistan. The Chola dynasty conquered southern India and successfully invaded parts of Southeast Asia, Sri Lanka, Maldives and Bengal in the 11th century. The early medieval period Indian mathematics influenced the development of mathematics and astronomy in the Arab world and the Hindu numerals were introduced.

What facet of Indian mathematics was introduced into the Arab areas in the early Medieval period?
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A: Hindu numerals

Problem: Appalachian Mountains:

The range is mostly located in the United States but extends into southeastern Canada, forming a zone from 100 to 300 mi (160 to 480 km) wide, running from the island of Newfoundland 1,500 mi (2,400 km) southwestward to Central Alabama in the United States.[discuss] The range covers parts of the islands of Saint Pierre and Miquelon, which comprise an overseas territory of France. The system is divided into a series of ranges, with the individual mountains averaging around 3,000 ft (910 m). The highest of the group is Mount Mitchell in North Carolina at 6,684 feet (2,037 m), which is the highest point in the United States east of the Mississippi River.

How high is the tallest point in the US?
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A: unanswerable

Problem: Queen (band):

On 30 October 2009, May wrote a fanclub letter on his website stating that Queen had no intentions to tour in 2010 but that there was a possibility of a performance. He was quoted as saying, "The greatest debate, though, is always about when we will next play together as Queen. At the moment, in spite of the many rumours that are out there, we do not have plans to tour in 2010. The good news, though, is that Roger and I have a much closer mutual understanding these daysprivately and professionally ... and all ideas are carefully considered. Music is never far away from us. As I write, there is an important one-off performance on offer, in the USA, and it remains to be decided whether we will take up this particular challenge. Every day, doors seem to open, and every day, we interact, perhaps more than ever before, with the world outside. It is a time of exciting transition in Rock music and in 'The Business'. It's good that the pulse still beats". On 15 November 2009, May and Taylor performed "Bohemian Rhapsody" live on the British TV show The X Factor alongside the finalists.

Which country had made an offer to Queen for a one off performance in 2010?
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A: USA

Problem: Guam:

The Chamorros, Guam's indigenous people, settled the island approximately 4,000 years ago. Portuguese explorer Ferdinand Magellan was the first European to visit the island on March 6, 1521. Guam was colonized in 1668 with settlers, like Diego Luis de San Vitores, a Catholic missionary. Between the 1500s and the 1700s, Guam was an important stopover for the Spanish Manila Galleons. During the SpanishAmerican War, the United States captured Guam on June 21, 1898. Under the Treaty of Paris, Spain ceded Guam to the United States on December 10, 1898. Guam is amongst the seventeen Non-Self-Governing Territories of the United Nations.

What year was Guam colonized?
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A:
1668