Problem: British Empire:

With support from the British abolitionist movement, Parliament enacted the Slave Trade Act in 1807, which abolished the slave trade in the empire. In 1808, Sierra Leone was designated an official British colony for freed slaves. The Slavery Abolition Act passed in 1833 abolished slavery in the British Empire on 1 August 1834 (with the exception of St. Helena, Ceylon and the territories administered by the East India Company, though these exclusions were later repealed). Under the Act, slaves were granted full emancipation after a period of 4 to 6 years of "apprenticeship".

How long of an 'apprenticeship' did slaves need to have before being fully freed?
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A: 4 to 6 years

Problem: The Germans expected to negotiate an end to the war but immediately ordered an advance on Paris; by 15 September Moltke issued the orders for an investment of Paris and on 20 September the encirclement was complete. Bismarck met Favre on 18 September at the Chateau de Ferrieres and demanded a frontier immune to a French war of revenge, which included Strasbourg, Alsace and most the Moselle department in Lorraine of which Metz was the capital. In return for an armistice for the French to elect a National Assembly, Bismarck demanded the surrender of Strasbourg and the fortress city of Toul. To allow supplies into Paris, one of the perimeter forts had to be handed over. Favre was unaware that the real aim of Bismarck in making such extortionate demands was to establish a durable peace on the new western frontier of Germany, preferably by a peace with a friendly government, on terms acceptable to French public opinion. An impregnable military frontier was an inferior alternative to him, favoured only by the militant nationalists on the German side.
Bismarck and Favre met on what date?
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Answer: 18 September

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
When the GHMC was created in 2007, the area occupied by the municipality increased from 175 km2 (68 sq mi) to 650 km2 (250 sq mi). Consequently, the population increased by 87%, from 3,637,483 in the 2001 census to 6,809,970 in the 2011 census, 24% of which are migrants from elsewhere in India,:2 making Hyderabad the nation's fourth most populous city. As of 2011[update], the population density is 18,480/km2 (47,900/sq mi). At the same 2011 census, the Hyderabad Urban Agglomeration had a population of 7,749,334, making it the sixth most populous urban agglomeration in the country. The population of the Hyderabad urban agglomeration has since been estimated by electoral officials to be 9.1 million as of early 2013 but is expected to exceed 10 million by the end of the year. There are 3,500,802 male and 3,309,168 female citizensa sex ratio of 945 females per 1000 males, higher than the national average of 926 per 1000. Among children aged 06 years, 373,794 are boys and 352,022 are girlsa ratio of 942 per 1000. Literacy stands at 82.96% (male 85.96%; female 79.79%), higher than the national average of 74.04%. The socio-economic strata consist of 20% upper class, 50% middle class and 30% working class.
What was the population density in Hyderabad in 2011?
A: 18,480/km2 (47,900/sq mi)

Context and question: A much smaller number of people are insensitive to pain due to an inborn abnormality of the nervous system, known as "congenital insensitivity to pain". Children with this condition incur carelessly-repeated damage to their tongues, eyes, joints, skin, and muscles. Some die before adulthood, and others have a reduced life expectancy.[citation needed] Most people with congenital insensitivity to pain have one of five hereditary sensory and autonomic neuropathies (which includes familial dysautonomia and congenital insensitivity to pain with anhidrosis). These conditions feature decreased sensitivity to pain together with other neurological abnormalities, particularly of the autonomic nervous system. A very rare syndrome with isolated congenital insensitivity to pain has been linked with mutations in the SCN9A gene, which codes for a sodium channel (Nav1.7) necessary in conducting pain nerve stimuli.
An abnormality of the nervous system can render a small number of people insensitive to what?
Answer: pain

Question: In Australia, Presbyterianism is the fourth largest denomination of Christianity, with nearly 600,000 Australians claiming to be Presbyterian in the 2006 Commonwealth Census. Presbyterian churches were founded in each colony, some with links to the Church of Scotland and others to the Free Church. There were also congregations originating from United Presbyterian Church of Scotland as well as a number founded by John Dunmore Lang. Most of these bodies merged between 1859 and 1870, and in 1901 formed a federal union called the Presbyterian Church of Australia but retaining their state assemblies. The Presbyterian Church of Eastern Australia representing the Free Church of Scotland tradition, and congregations in Victoria of the Reformed Presbyterian Church, originally from Ireland, are the other existing denominations dating from colonial times.
Is there an answer to this question: According to the 1901 census, how many Australians claim to be Presbyterian?

Answer: unanswerable

QUES: Resonant antennas are expected to be used around a particular resonant frequency; an antenna must therefore be built or ordered to match the frequency range of the intended application. A particular antenna design will present a particular feedpoint impedance. While this may affect the choice of an antenna, an antenna's impedance can also be adapted to the desired impedance level of a system using a matching network while maintaining the other characteristics (except for a possible loss of efficiency).

Which antenna type would be best for a project requiring a specific frequency?
What is the answer?
ANS:
Resonant antennas