Problem: Education:

While considered "alternative" today, most alternative systems have existed since ancient times. After the public school system was widely developed beginning in the 19th century, some parents found reasons to be discontented with the new system. Alternative education developed in part as a reaction to perceived limitations and failings of traditional education. A broad range of educational approaches emerged, including alternative schools, self learning, homeschooling and unschooling. Example alternative schools include Montessori schools, Waldorf schools (or Steiner schools), Friends schools, Sands School, Summerhill School, The Peepal Grove School, Sudbury Valley School, Krishnamurti schools, and open classroom schools. Charter schools are another example of alternative education, which have in the recent years grown in numbers in the US and gained greater importance in its public education system.

When were public schools become more and more developed?
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A: 19th century

Problem: House music:

Acid house arose from Chicago artists' experiments with the squelchy Roland TB-303 bass synthesizer, and the style's origins on vinyl is generally cited as Phuture's "Acid Tracks" (1987). Phuture, a group founded by Nathan "DJ Pierre" Jones, Earl "Spanky" Smith Jr., and Herbert "Herb J" Jackson, is credited with having been the first to use the TB-303 in the house music context. The group's 12-minute "Acid Tracks" was recorded to tape and was played by DJ Ron Hardy at the Music Box, where Hardy was resident DJ. Hardy once played it four times over the course of an evening until the crowd responded favorably. The track also utilized a Roland TR-707 drum machine.

what type of drum machine did "acid tracks" use?
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A: Roland TR-707

Problem: Nanjing:

On 10 February 2010, the 122nd IOC session at Vancouver announced Nanjing as the host city for the 2nd Summer Youth Olympic Games. The slogan of the 2014 Youth Olympic Games was "Share the Games, Share our Dreams". The Nanjing 2014 Youth Olympic Games featured all 28 sports on the Olympic programme and were held from 16 to 28 August. The Nanjing Youth Olympic Games Organising Committee (NYOGOC) worked together with the International Olympic Committee (IOC) to attract the best young athletes from around the world to compete at the highest level. Off the competition fields, an integrated culture and education programme focused on discussions about education, Olympic values, social challenges, and cultural diversity. The YOG aims to spread the Olympic spirit and encourage sports participation.

How many types of sports were performed in the 2014 Youth Olympic Games?
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A: 28

Problem: The Bronx:

In the Presidential primary elections of February 5, 2008, Sen. Clinton won 61.2% of the Bronx's 148,636 Democratic votes against 37.8% for Barack Obama and 1.0% for the other four candidates combined (John Edwards, Dennis Kucinich, Bill Richardson and Joe Biden). On the same day, John McCain won 54.4% of the borough's 5,643 Republican votes, Mitt Romney 20.8%, Mike Huckabee 8.2%, Ron Paul 7.4%, Rudy Giuliani 5.6%, and the other candidates (Fred Thompson, Duncan Hunter and Alan Keyes) 3.6% between them.

In the 2008 primary, how much of the Bronx vote did Huckabee get?
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A:
8.2%