Problem: History of science:

In Hellenistic Egypt, the mathematician Euclid laid down the foundations of mathematical rigor and introduced the concepts of definition, axiom, theorem and proof still in use today in his Elements, considered the most influential textbook ever written. Archimedes, considered one of the greatest mathematicians of all time, is credited with using the method of exhaustion to calculate the area under the arc of a parabola with the summation of an infinite series, and gave a remarkably accurate approximation of Pi. He is also known in physics for laying the foundations of hydrostatics, statics, and the explanation of the principle of the lever.

Who wrote the book Elements?
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A: Euclid


Problem: In a major split in the ranks of Al Qaeda's organization, the Iraqi franchise, known as Al Qaeda in Iraq covertly invaded Syria and the Levant and began participating in the ongoing Syrian Civil War, gaining enough support and strength to re-invade Iraq's western provinces under the name of the Islamic State of Iraq and the Levant (ISIS/ISIL), taking over much of the country in a blitzkrieg-like action and combining the Iraq insurgency and Syrian Civil War into a single conflict. Due to their extreme brutality and a complete change in their overall ideology, Al Qaeda's core organization in Central Asia eventually denounced ISIS and directed their affiliates to cut off all ties with this organization. Many analysts[who?] believe that because of this schism, Al Qaeda and ISIL are now in a competition to retain the title of the world's most powerful terrorist organization.
What group publicly denounced al-Qaeda?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
According to a 2007 BSA and International Data Corporation (IDC) study, the five countries with the highest rates of software piracy were: 1. Armenia (93%); 2. Bangladesh (92%); 3. Azerbaijan (92%); 4. Moldova (92%); and 5. Zimbabwe (91%). According to the study's results, the five countries with the lowest piracy rates were: 1. U.S. (20%); 2. Luxembourg (21%); 3. New Zealand (22%); 4. Japan (23%); and 5. Austria (25%). The 2007 report showed that the Asia-Pacific region was associated with the highest amount of loss, in terms of U.S. dollars, with $14,090,000, followed by the European Union, with a loss of $12,383,000; the lowest amount of U.S. dollars was lost in the Middle East/Africa region, where $2,446,000 was documented.
Which region had the highest loss?
A: Asia-Pacific


Context and question: While historically, symbiosis has received less attention than other interactions such as predation or competition, it is increasingly recognized as an important selective force behind evolution, with many species having a long history of interdependent co-evolution. In fact, the evolution of all eukaryotes (plants, animals, fungi, and protists) is believed under the endosymbiotic theory to have resulted from a symbiosis between various sorts of bacteria. This theory is supported by certain organelles dividing independently of the cell, and the observation that some organelles seem to have their own nucleic acid.
What are eukaryotes?
Answer: plants, animals, fungi, and protists


Question: YouTube does not usually offer a download link for its videos, and intends for them to be viewed through its website interface. A small number of videos, such as the weekly addresses by President Barack Obama, can be downloaded as MP4 files. Numerous third-party web sites, applications and browser plug-ins allow users to download YouTube videos. In February 2009, YouTube announced a test service, allowing some partners to offer video downloads for free or for a fee paid through Google Checkout. In June 2012, Google sent cease and desist letters threatening legal action against several websites offering online download and conversion of YouTube videos. In response, Zamzar removed the ability to download YouTube videos from its site. The default settings when uploading a video to YouTube will retain a copyright on the video for the uploader, but since July 2012 it has been possible to select a Creative Commons license as the default, allowing other users to reuse and remix the material if it is free of copyright.
Is there an answer to this question: Whose weekly addresses could be downloaded as videos?

Answer: unanswerable


Problem: Financial crisis of 2007%E2%80%9308:

The securitization markets supported by the shadow banking system started to close down in the spring of 2007 and nearly shut-down in the fall of 2008. More than a third of the private credit markets thus became unavailable as a source of funds. 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."

How much of the private credit markets become unavailable as a source of funds?
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A:
More than a third