Article: Early digital computers were electromechanical; electric switches drove mechanical relays to perform the calculation. These devices had a low operating speed and were eventually superseded by much faster all-electric computers, originally using vacuum tubes. The Z2, created by German engineer Konrad Zuse in 1939, was one of the earliest examples of an electromechanical relay computer.

Question: Who created the relay computer, the Z2?
Ans: Konrad Zuse

Here is a question about this article: Intelligence is an important factor in how the individual responds to education. Those who have higher intelligence tend to perform better at school and go on to higher levels of education. This effect is also observable in the opposite direction, in that education increases measurable intelligence. Studies have shown that while educational attainment is important in predicting intelligence in later life, intelligence at 53 is more closely correlated to intelligence at 8 years old than to educational attainment.
What is the answer to this question: What is intelligence at 53 more closely related to?
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So... intelligence at 8

The problem: Answer a question about this article:
Also in 1931, Hayek critiqued Keynes's Treatise on Money (1930) in his "Reflections on the pure theory of Mr. J. M. Keynes" and published his lectures at the LSE in book form as Prices and Production. Unemployment and idle resources are, for Keynes, caused by a lack of effective demand; for Hayek, they stem from a previous, unsustainable episode of easy money and artificially low interest rates. Keynes asked his friend Piero Sraffa to respond. Sraffa elaborated on the effect of inflation-induced "forced savings" on the capital sector and about the definition of a "natural" interest rate in a growing economy. Others who responded negatively to Hayek's work on the business cycle included John Hicks, Frank Knight, and Gunnar Myrdal. Kaldor later wrote that Hayek's Prices and Production had produced "a remarkable crop of critics" and that the total number of pages in British and American journals dedicated to the resulting debate "could rarely have been equalled in the economic controversies of the past."
Who did Keynes turn to for assistance in arguing his point to Hayek?
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The answer: Piero Sraffa

Problem: Please answer a question about the following article about A cappella:
The fourth a cappella musical to appear Off-Broadway, In Transit, premiered 5 October 2010 and was produced by Primary Stages with book, music, and lyrics by Kristen Anderson-Lopez, James-Allen Ford, Russ Kaplan, and Sara Wordsworth. Set primarily in the New York City subway system its score features an eclectic mix of musical genres (including jazz, hip hop, Latin, rock, and country). In Transit incorporates vocal beat boxing into its contemporary a cappella arrangements through the use of a subway beat boxer character. Beat boxer and actor Chesney Snow performed this role for the 2010 Primary Stages production. According to the show's website, it is scheduled to reopen for an open-ended commercial run in the Fall of 2011. In 2011 the production received four Lucille Lortel Award nominations including Outstanding Musical, Outer Critics Circle and Drama League nominations, as well as five Drama Desk nominations including Outstanding Musical and won for Outstanding Ensemble Performance.
What is the name of the actor who played the subway beat boxer?
A: Chesney Snow

Question: Read this and answer the question

The most expensive part of a CD is the jewel case. In 1995, material costs were 30 cents for the jewel case and 10 to 15 cents for the CD. Wholesale cost of CDs was $0.75 to $1.15, which retailed for $16.98. On average, the store received 35 percent of the retail price, the record company 27 percent, the artist 16 percent, the manufacturer 13 percent, and the distributor 9 percent. When 8-track tapes, cassette tapes, and CDs were introduced, each was marketed at a higher price than the format they succeeded, even though the cost to produce the media was reduced. This was done because the apparent value increased. This continued from vinyl to CDs but was broken when Apple marketed MP3s for $0.99, and albums for $9.99. The incremental cost, though, to produce an MP3 is very small.

Who received the most profit from the sale of CDs?
Answer: the store

During the 1950s the rivalry was exacerbated further when there was a controversy surrounding the transfer of Alfredo di Stefano, who finally played for Real Madrid and was key to their subsequent success. The 1960s saw the rivalry reach the European stage when they met twice in a controversial knock-out round of the European Cup, with Madrid receiving unfavourable treatment from the referee. In 2002, the European encounter between the clubs was dubbed the "Match of The Century" by Spanish media, and Madrid's win was watched by more than 500 million people.
When did Barcelona meet Real Madrid twice in Europe?
1960s