Problem: Paris:

The population of Paris today is lower than its historical peak of 2.9 million in 1921. The principal reasons were a significant decline in household size, and a dramatic migration of residents to the suburbs between 1962 and 1975. Factors in the migration included de-industrialisation, high rent, the gentrification of many inner quarters, the transformation of living space into offices, and greater affluence among working families. The city's population loss came to an end in the 21st century; the population estimate of July 2004 showed a population increase for the first time since 1954, and the population reached 2,234,000 by 2009.

What was the population in 2009?
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A: 2,234,000


Problem: Southampton:

The importance of Southampton to the cruise industry was indicated by P&O Cruises's 175th anniversary celebrations, which included all seven of the company's liners visiting Southampton in a single day. Adonia, Arcadia, Aurora, Azura, Oceana, Oriana and Ventura all left the city in a procession on 3 July 2012.

Which anniversary did P&O celebrate in Southampton?
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A: 175th


Problem: Bacteria:

Endospores show no detectable metabolism and can survive extreme physical and chemical stresses, such as high levels of UV light, gamma radiation, detergents, disinfectants, heat, freezing, pressure, and desiccation. In this dormant state, these organisms may remain viable for millions of years, and endospores even allow bacteria to survive exposure to the vacuum and radiation in space. According to scientist Dr. Steinn Sigurdsson, "There are viable bacterial spores that have been found that are 40 million years old on Earth — and we know they're very hardened to radiation." Endospore-forming bacteria can also cause disease: for example, anthrax can be contracted by the inhalation of Bacillus anthracis endospores, and contamination of deep puncture wounds with Clostridium tetani endospores causes tetanus.

What extreme physical and chemical stresses can endospores endure?
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A: UV light, gamma radiation, detergents, disinfectants, heat, freezing, pressure


Problem: Montevideo:

Palacio Salvo, at the intersection of 18 de Julio Avenue and Plaza Independencia, was designed by the architect Mario Palanti and completed in 1925. Palanti, an Italian immigrant living in Buenos Aires, used a similar design for his Palacio Barolo in Buenos Aires, Argentina. Palacio Salvo stands 100 metres (330 ft) high, including its antenna. It is built on the former site of the Confitería La Giralda, renowned for being where Gerardo Matos Rodríguez wrote his tango "La Cumparsita" (1917.) Palacio Salvo was originally intended to function as a hotel but is now a mixture of offices and private residences.

How high does the Palacio Salvo stand?
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A:
100 metres (330 ft) high