Problem: Philadelphia:

Philadelphia is home to many national historical sites that relate to the founding of the United States. Independence National Historical Park is the center of these historical landmarks being one of the country's 22 UNESCO World Heritage Sites. Independence Hall, where the Declaration of Independence was signed, and the Liberty Bell are the city's most famous attractions. Other historic sites include homes for Edgar Allan Poe, Betsy Ross, and Thaddeus Kosciuszko, early government buildings like the First and Second Banks of the United States, Fort Mifflin, and the Gloria Dei (Old Swedes') Church. Philadelphia alone has 67 National Historic Landmarks, the third most of any city in the country.

What famous writer has a house in Philadelphia?
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A: Edgar Allan Poe


Problem: Somerset:

Until the 1960s the piers at Weston-super-Mare, Clevedon, Portishead and Minehead were served by the paddle steamers of P and A Campbell who ran regular services to Barry and Cardiff as well as Ilfracombe and Lundy Island. The pier at Burnham-on-Sea was used for commercial goods, one of the reasons for the Somerset and Dorset Joint Railway was to provide a link between the Bristol Channel and the English Channel. The pier at Burnham-on-Sea is the shortest pier in the UK. In the 1970s the Royal Portbury Dock was constructed to provide extra capacity for the Port of Bristol.

What were the piers at Barry primarily used for?
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A: unanswerable


Problem: Chihuahua (state):

According to the Instituto Nacional de Estadística, Geografía e Informática (INEGI), 95.6% of the population over the age of 15 could read and write Spanish, and 97.3% of children of ages 8–14 could read and write Spanish. An estimated 93.5% of the population ages 6–14 attend an institution of education. Estimated 12.8% of residents of the state have obtained a college degree. Average schooling is 8.5 years, which means that in general the average citizen over 15 years of age has gone as far as a second year in secondary education.

What percentage of children ages 8-14 could read and write Spanish?
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A: 97.3%


Problem: Biodiversity:

Endemic species can be threatened with extinction through the process of genetic pollution, i.e. uncontrolled hybridization, introgression and genetic swamping. Genetic pollution leads to homogenization or replacement of local genomes as a result of either a numerical and/or fitness advantage of an introduced species. Hybridization and introgression are side-effects of introduction and invasion. These phenomena can be especially detrimental to rare species that come into contact with more abundant ones. The abundant species can interbreed with the rare species, swamping its gene pool. This problem is not always apparent from morphological (outward appearance) observations alone. Some degree of gene flow is normal adaptation, and not all gene and genotype constellations can be preserved. However, hybridization with or without introgression may, nevertheless, threaten a rare species' existence.

What is another name for interbreeding?
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A:
unanswerable