The problem: Answer a question about this article:
Since 1973 Plymouth has been supplied water by South West Water. Prior to the 1973 take over it was supplied by Plymouth County Borough Corporation. Before the 19th century two leats were built in order to provide drinking water for the town. They carried water from Dartmoor to Plymouth. A watercourse, known as Plymouth or Drake's Leat, was opened on 24 April 1591 to tap the River Meavy. The Devonport Leat was constructed to carry fresh drinking water to the expanding town of Devonport and its ever growing dockyard. It was fed by three Dartmoor rivers: The West Dart, Cowsic and Blackabrook. It seems to have been carrying water since 1797, but it was officially completed in 1801. It was originally designed to carry water to Devonport town, but has since been shortened and now carries water to Burrator Reservoir, which feeds most of the water supply of Plymouth. Burrator Reservoir is located about 5 miles (8 km) north of the city and was constructed in 1898 and expanded in 1928.
When did construction finish on Devonport Leat?
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The answer: 1801

The problem: Answer a question about this article:
The formula defining the HDI is promulgated by the United Nations Development Programme (UNDP). In general, to transform a raw variable, say , into a unit-free index between 0 and 1 (which allows different indices to be added together), the following formula is used:
What entity makes the defining formula for the HDI well-known?
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The answer: the United Nations Development Programme

The problem: Answer a question about this article:
The 2009 Human Rights Report by the United States Department of State noted that human rights in CAR were poor and expressed concerns over numerous government abuses. The U.S. State Department alleged that major human rights abuses such as extrajudicial executions by security forces, torture, beatings and rape of suspects and prisoners occurred with impunity. It also alleged harsh and life-threatening conditions in prisons and detention centers, arbitrary arrest, prolonged pretrial detention and denial of a fair trial, restrictions on freedom of movement, official corruption, and restrictions on workers' rights.
How are the human rights in the CAR?
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The answer: poor

The problem: Answer a question about this article:
According to Mahayana tradition, the Mahayana sutras were transmitted in secret, came from other Buddhas or Bodhisattvas, or were preserved in non-human worlds because human beings at the time could not understand them:
What sutras could have been preserved in non-human worlds?
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The answer:
Mahayana