Problem: There were 15,504 households, of which 27.3% had children under the age of 18 living with them, 25.9% were married couples living together, 22.2% had a female householder with no husband present, and 44.8% were non-families. 37.5% of all households were made up of individuals, and 14.3% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.34.
How many households were there in Atlantic City during the 2010 United States Census?
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Answer: 15,504

Problem: Season four premiered on January 18, 2005; this was the first season of the series to be aired in high definition, although the finale of season three was also aired in high definition. The number of those attending the auditions by now had increased to over 100,000 from the 10,000 of the first season. The age limit was raised to 28 in this season, and among those who benefited from this new rule were Constantine Maroulis and Bo Bice, the two rockers of the show.
In which season was Bo Bice a contestant on American Idol?
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Answer: Season four

Problem: A major turning point in the development of DC machines took place in 1864, when Antonio Pacinotti described for the first time the ring armature with its symmetrically grouped coils closed upon themselves and connected to the bars of a commutator, the brushes of which delivered practically non-fluctuating current. The first commercially successful DC motors followed the invention by Zenobe Gramme who, in 1871, reinvented Pacinotti's design. In 1873, Gramme showed that his dynamo could be used as a motor, which he demonstrated to great effect at exhibitions in Vienna and Philadelphia by connecting two such DC motors at a distance of up to 2 km away from each other, one as a generator. (See also 1873 : l'experience decisive [Decisive Workaround] .)
Besides a motor, what did Gramme use the other device for?
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Answer:
generator