Problem: Antarctica:

About 98% of Antarctica is covered by the Antarctic ice sheet, a sheet of ice averaging at least 1.6 km (1.0 mi) thick. The continent has about 90% of the world's ice (and thereby about 70% of the world's fresh water). If all of this ice were melted, sea levels would rise about 60 m (200 ft). In most of the interior of the continent, precipitation is very low, down to 20 mm (0.8 in) per year; in a few "blue ice" areas precipitation is lower than mass loss by sublimation and so the local mass balance is negative. In the dry valleys, the same effect occurs over a rock base, leading to a desiccated landscape.

What ice sheet covers all of Antarctica?
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A: unanswerable


Problem: In the years after Tito's death up to nowadays, some people have disputed his identity. Tito's personal doctor, Aleksandar Matunović, wrote a book about Tito in which he also questioned his true origin, noting that Tito's habits and lifestyle could only mean that he was from an aristocratic family. Serbian journalist Vladan Dinić (born 1949), in Tito nije tito, includes several possible alternate identities of Tito.
What Serbian journalist includes several alternate identities of Tito?
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Answer: Vladan Dinić


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
There have been cases of a variety of speech being deliberately reclassified to serve political purposes. One example is Moldovan. In 1996, the Moldovan parliament, citing fears of "Romanian expansionism", rejected a proposal from President Mircea Snegur to change the name of the language to Romanian, and in 2003 a Moldovan–Romanian dictionary was published, purporting to show that the two countries speak different languages. Linguists of the Romanian Academy reacted by declaring that all the Moldovan words were also Romanian words; while in Moldova, the head of the Academy of Sciences of Moldova, Ion Bărbuţă, described the dictionary as a politically motivated "absurdity".
When did the Moldovan parliament approve a proposal from President Snegur?
A: unanswerable


Context and question: The earthquake had a magnitude of 8.0 Ms and 7.9 Mw. The epicenter was in Wenchuan County, Ngawa Tibetan and Qiang Autonomous Prefecture, 80 km west/northwest of the provincial capital of Chengdu, with its main tremor occurring at 14:28:01.42 China Standard Time (06:28:01.42 UTC), on May 12, 2008 lasting for around 2 minutes, in the quake almost 80% of buildings were destroyed.
How long did the main tremor last?
Answer: 2 minutes


Question: In the Age of Reason philosophical tracts and speculations on history and human nature integrated literature with social and political developments. The inevitable reaction was the explosion of Romanticism in the later 18th century which reclaimed the imaginative and fantastical bias of old romances and folk-literature and asserted the primacy of individual experience and emotion. But as the 19th-century went on, European fiction evolved towards realism and naturalism, the meticulous documentation of real life and social trends. Much of the output of naturalism was implicitly polemical, and influenced social and political change, but 20th century fiction and drama moved back towards the subjective, emphasising unconscious motivations and social and environmental pressures on the individual. Writers such as Proust, Eliot, Joyce, Kafka and Pirandello exemplify the trend of documenting internal rather than external realities.
Is there an answer to this question: What happened during the Age of Reasoning?

Answer: unanswerable


Bacteria, as asexual organisms, inherit identical copies of their parent's genes (i.e., they are clonal). However, all bacteria can evolve by selection on changes to their genetic material DNA caused by genetic recombination or mutations. Mutations come from errors made during the replication of DNA or from exposure to mutagens. Mutation rates vary widely among different species of bacteria and even among different clones of a single species of bacteria. Genetic changes in bacterial genomes come from either random mutation during replication or "stress-directed mutation", where genes involved in a particular growth-limiting process have an increased mutation rate.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What can cause mutation in bacteria?
Ah, so..
changes to their genetic material DNA