Here is a question about this article: German air supremacy at night was also now under threat. British night-fighter operations out over the Channel were proving highly successful. This was not immediately apparent. The Bristol Blenheim F.1 was undergunned, with just four .303 in (7.7 mm) machine guns which struggled to down the Do 17, Ju 88, or Heinkel He 111. Moreover, the Blenheim struggled to reach the speed of the German bombers. Added to the fact an interception relied on visual sighting, a kill was most elusive even in the conditions of a moonlit sky.
What is the answer to this question: What did interception rely upon?
****
So... visual sighting

The problem: Answer a question about this article:
This meant that nearly one-third of the U.S. lending mechanism was frozen and continued to be frozen into June 2009. According to the Brookings Institution, the traditional banking system does not have the capital to close this gap as of June 2009: "It would take a number of years of strong profits to generate sufficient capital to support that additional lending volume". The authors also indicate that some forms of securitization are "likely to vanish forever, having been an artifact of excessively loose credit conditions". While traditional banks have raised their lending standards, it was the collapse of the shadow banking system that is the primary cause of the reduction in funds available for borrowing.
How much of the U.S. lending mechanism was frozen until June 2009?
****
The answer: nearly one-third

Problem: Please answer a question about the following article about Friedrich Hayek:
Some socialists such as H. D. Dickinson and Oskar Lange, responded by invoking general equilibrium theory, which they argued disproved Mises's thesis. They noted that the difference between a planned and a free market system lay in who was responsible for solving the equations. They argued, if some of the prices chosen by socialist managers were wrong, gluts or shortages would appear, signalling them to adjust the prices up or down, just as in a free market. Through such a trial and error, a socialist economy could mimic the efficiency of a free market system, while avoiding its many problems.
What did socialists believe equilibrium theory invalidated?
A: Mises's thesis

Question: Read this and answer the question

Various benefactions make it possible to give grants each year to boys who wish, for educational or cultural reasons, to work or travel abroad. These include the Busk Fund, which supports individual ventures that show particular initiative; the C.M. Wells Memorial Trust Fund, for the promotion of visits to classical lands; the Sadler Fund, which supports, amongst others, those intending to enter the Foreign Service; and the Marsden Fund, for travel in countries where the principal language is not English.

Which Fund is dedicated for travel to non-English speaking countries?
Answer: Marsden Fund

Problem: In separate testimony to Financial Crisis Inquiry Commission, officers of Clayton Holdingsthe largest residential loan due diligence and securitization surveillance company in the United States and Europetestified that Clayton's review of over 900,000 mortgages issued from January 2006 to June 2007 revealed that scarcely 54% of the loans met their originators' underwriting standards. The analysis (conducted on behalf of 23 investment and commercial banks, including 7 "too big to fail" banks) additionally showed that 28% of the sampled loans did not meet the minimal standards of any issuer. Clayton's analysis further showed that 39% of these loans (i.e. those not meeting any issuer's minimal underwriting standards) were subsequently securitized and sold to investors.
Per Clayton's analysis of loans issued from January 2006 to June 2007, what percent of loans did not meet minimal standards of any issuer?
The answer is the following: 28%

Input: Article: Commercial CSP plants were first developed in the 1980s. Since 1985 the eventually 354 MW SEGS CSP installation, in the Mojave Desert of California, is the largest solar power plant in the world. Other large CSP plants include the 150 MW Solnova Solar Power Station and the 100 MW Andasol solar power station, both in Spain. The 250 MW Agua Caliente Solar Project, in the United States, and the 221 MW Charanka Solar Park in India, are the world's largest photovoltaic plants. Solar projects exceeding 1 GW are being developed, but most of the deployed photovoltaics are in small rooftop arrays of less than 5 kW, which are grid connected using net metering and/or a feed-in tariff. In 2013 solar generated less than 1% of the worlds total grid electricity.

Now answer this question: Less than 1% of the world's total grid electricity was generated by solar energy in what year?

Output:
2013