Problem: Neptune:

High-altitude clouds on Neptune have been observed casting shadows on the opaque cloud deck below. There are also high-altitude cloud bands that wrap around the planet at constant latitude. These circumferential bands have widths of 50–150 km and lie about 50–110 km above the cloud deck. These altitudes are in the layer where weather occurs, the troposphere. Weather does not occur in the higher stratosphere or thermosphere. Unlike Uranus, Neptune's composition has a higher volume of ocean, whereas Uranus has a smaller mantle.

What are the widths of the cloud bands on Neptune? 
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A: 50–150 km


Problem: Guam:

Spanish colonization commenced on June 15, 1668 with the arrival of Diego Luis de San Vitores and Pedro Calungsod, who established the first Catholic church.:64 The islands were part of the Spanish East Indies governed from the Philippines, which were in turn part of the Viceroyalty of New Spain based in Mexico City. Other reminders of colonial times include the old Governor's Palace in Plaza de España and the Spanish Bridge, both in Hagatña. Guam's Cathedral Dulce Nombre de Maria was formally opened on February 2, 1669, as was the Royal College of San Juan de Letran.:68 Guam, along with the rest of the Mariana and Caroline Islands, were treated as part of Spain's colony in the Philippines. While Guam's Chamorro culture has indigenous roots, the cultures of both Guam and the Northern Marianas have many similarities with Spanish and Mexican culture due to three centuries of Spanish rule.

On what date did Spain colonize the Philippines?
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A: unanswerable


Problem: Eton College:

A boy who is late for any division or other appointment may be required to sign "Tardy Book", a register kept in the School Office, between 7.35am and 7.45am, every morning for the duration of his sentence (typically three days). Tardy Book may also be issued for late work. For more serious misdeeds, a boy is summoned from his lessons to the Head Master, or Lower Master if the boy is in the lower two years, to talk personally about his misdeeds. This is known as the "Bill". The most serious misdeeds may result in expulsion, or rustication (suspension). Conversely, should a master be more than 15 minutes late for a class, traditionally the pupils might claim it as a "run" and absent themselves for the rest of its duration.

What must a student sign if the commit a serious misdeed?
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A: unanswerable


Problem: Economy of Greece:

In 2008 renewable energy accounted for 8% of the country's total energy consumption, a rise from the 7.2% it accounted for in 2006, but still below the EU average of 10% in 2008. 10% of the country's renewable energy comes from solar power, while most comes from biomass and waste recycling. In line with the European Commission's Directive on Renewable Energy, Greece aims to get 18% of its energy from renewable sources by 2020. In 2013 and for several months, Greece produced more than 20% of its electricity from renewable energy sources and hydroelectric power plants. Greece currently does not have any nuclear power plants in operation, however in 2009 the Academy of Athens suggested that research in the possibility of Greek nuclear power plants begin.

How much of Greece's energy is targeted to be reduced from renewable sources by 2020?
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A:
unanswerable