The problem: Answer a question about this article:
The band had a number of bass players during this period who did not fit with the band's chemistry. It was not until February 1971 that they settled on John Deacon and began to rehearse for their first album. They recorded four of their own songs, "Liar", "Keep Yourself Alive", "The Night Comes Down" and "Jesus", for a demo tape; no record companies were interested. It was also around this time Freddie changed his surname to "Mercury", inspired by the line "Mother Mercury, look what they've done to me" in the song "My Fairy King". On 2 July 1971, Queen played their first show in the classic line-up of Mercury, May, Taylor and Deacon at a Surrey college outside London.
On what date did Queen play their first show?
****
The answer: 2 July 1971

The problem: Answer a question about this article:
Council estates are in the Weston, Thornhill and Townhill Park districts. The city is ranked 96th most deprived out of all 354 Local Authorities in England.
What's Southampton's ranking on the list of most deprived Local Authorities in England?
****
The answer: 96th

The problem: Answer a question about this article:
Shuman built the world's first solar thermal power station in Maadi, Egypt, between 1912 and 1913. Shuman's plant used parabolic troughs to power a 4552 kilowatts (6070 hp) engine that pumped more than 22,000 litres (4,800 imp gal; 5,800 US gal) of water per minute from the Nile River to adjacent cotton fields. Although the outbreak of World War I and the discovery of cheap oil in the 1930s discouraged the advancement of solar energy, Shuman's vision and basic design were resurrected in the 1970s with a new wave of interest in solar thermal energy. In 1916 Shuman was quoted in the media advocating solar energy's utilization, saying:
How many liters of water per minute did Shuman's engine pump in litres?
****
The answer: 22,000

The problem: Answer a question about this article:
The Statistics Portugal (Portuguese: INE - Instituto Nacional de Estatistica) estimates that, according to the 2011 census, the population was 10,562,178 (of which 52% was female, 48% was male). This population has been relatively homogeneous for most of its history: a single religion (Catholicism) and a single language have contributed to this ethnic and national unity, namely after the expulsion of the Moors and Jews. A considerable number of Moors and Jews, nevertheless, stayed in Portugal, under the condition that they converted to Catholicism, and afterwards they were known as Mouriscos (former Muslims) and Cristaos Novos (New Christians or former Jews) some of whom may have continued to observe rabbinic Judaism in secret, as in the case of the secret Jews of Belmonte, who now observe the Jewish faith openly. After 1772 the distinction between Old and New Christians was abolished by decree. Some famous Portuguese New Christians were the mathematician Pedro Nunes and the physician and naturalist Garcia de Orta.
What percentage of the Portuguese population in 2011 was male?
****
The answer:
48%