Problem: Matter:

Antimatter is not found naturally on Earth, except very briefly and in vanishingly small quantities (as the result of radioactive decay, lightning or cosmic rays). This is because antimatter that came to exist on Earth outside the confines of a suitable physics laboratory would almost instantly meet the ordinary matter that Earth is made of, and be annihilated. Antiparticles and some stable antimatter (such as antihydrogen) can be made in tiny amounts, but not in enough quantity to do more than test a few of its theoretical properties.

What is an example of an antiparticle?
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A: unanswerable

Problem: The evolution of Proto-Greek should be considered within the context of an early Paleo-Balkan sprachbund that makes it difficult to delineate exact boundaries between individual languages. The characteristically Greek representation of word-initial laryngeals by prothetic vowels is shared, for one, by the Armenian language, which also seems to share some other phonological and morphological peculiarities of Greek; this has led some linguists to propose a hypothetical closer relationship between Greek and Armenian, although evidence remains scant.
What was developed by some linguists that is not a constant?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Antarctica is colder than the Arctic for three reasons. First, much of the continent is more than 3,000 m (9,800 ft) above sea level, and temperature decreases with elevation in the troposphere. Second, the Arctic Ocean covers the north polar zone: the ocean's relative warmth is transferred through the icepack and prevents temperatures in the Arctic regions from reaching the extremes typical of the land surface of Antarctica. Third, the Earth is at aphelion in July (i.e., the Earth is farthest from the Sun in the Antarctic winter), and the Earth is at perihelion in January (i.e., the Earth is closest to the Sun in the Antarctic summer). The orbital distance contributes to a colder Antarctic winter (and a warmer Antarctic summer) but the first two effects have more impact.
How far above sea level is the Arctic?
A: unanswerable

Context and 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.
What did YouTube announce in February 2012?
Answer: unanswerable

Question: Napoleon was born on 15 August 1769, to Carlo Maria di Buonaparte and Maria Letizia Ramolino, in his family's ancestral home Casa Buonaparte in Ajaccio, the capital of the island of Corsica. He was their fourth child and third son. This was a year after the island was transferred to France by the Republic of Genoa. He was christened Napoleone di Buonaparte, probably named after an uncle (an older brother who did not survive infancy was the first of the sons to be called Napoleone). In his 20s, he adopted the more French-sounding Napoleon Bonaparte.[note 2]
Is there an answer to this question: Who was Napoleon's father?

Answer: Carlo Maria di Buonaparte

Problem: Myanmar:

Many US and European jewellery companies, including Bulgari, Tiffany, and Cartier, refuse to import these stones based on reports of deplorable working conditions in the mines. Human Rights Watch has encouraged a complete ban on the purchase of Burmese gems based on these reports and because nearly all profits go to the ruling junta, as the majority of mining activity in the country is government-run. The government of Myanmar controls the gem trade by direct ownership or by joint ventures with private owners of mines.

What is the difficulty with expanding the gem business in Burma ?
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A:
US and European jewellery companies, including Bulgari, Tiffany, and Cartier, refuse to import these stones based