Problem: Computer security:

Serious financial damage has been caused by security breaches, but because there is no standard model for estimating the cost of an incident, the only data available is that which is made public by the organizations involved. "Several computer security consulting firms produce estimates of total worldwide losses attributable to virus and worm attacks and to hostile digital acts in general. The 2003 loss estimates by these firms range from $13 billion (worms and viruses only) to $226 billion (for all forms of covert attacks). The reliability of these estimates is often challenged; the underlying methodology is basically anecdotal."

When was the standard model for estimating the cost of a breach established?
---
A: unanswerable

Problem: The word "Slavs" was used in the national anthem of the Slovak Republic (19391945), Yugoslavia (19431992) and the Federal Republic of Yugoslavia (19922003), later Serbia and Montenegro (20032006).
What word was taken out of the national anthem of the Slovak Republic in 1939?
---
Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Napoleon, expecting to win the war, delayed too long and lost this opportunity; by December the Allies had withdrawn the offer. When his back was to the wall in 1814 he tried to reopen peace negotiations on the basis of accepting the Frankfurt proposals. The Allies now had new, harsher terms that included the retreat of France to its 1791 boundaries, which meant the loss of Belgium. Napoleon would remain Emperor, however he rejected the term. The British wanted Napoleon permanently removed; they prevailed. Napoleon adamantly refused.
In the new Allied peace proposal, what territory would France have been forced to surrender?
A: Belgium

Context and question: Czech syntax has a subjectverbobject sentence structure. In practice, however, word order is flexible and used for topicalization and focus. Although Czech has a periphrastic passive construction (like English), colloquial word-order changes frequently produce the passive voice. For example, to change "Peter killed Paul" to "Paul was killed by Peter" the order of subject and object is inverted: Petr zabil Pavla ("Peter killed Paul") becomes "Paul, Peter killed" (Pavla zabil Petr). Pavla is in the accusative case, the grammatical object (in this case, the victim) of the verb.
What case is the grammatical object of a verb?
Answer: accusative

Question: Different pieces of wood cut from a large tree may differ decidedly, particularly if the tree is big and mature. In some trees, the wood laid on late in the life of a tree is softer, lighter, weaker, and more even-textured than that produced earlier, but in other trees, the reverse applies. This may or may not correspond to heartwood and sapwood. In a large log the sapwood, because of the time in the life of the tree when it was grown, may be inferior in hardness, strength, and toughness to equally sound heartwood from the same log. In a smaller tree, the reverse may be true.
Is there an answer to this question: When a big tree is cut up, will the pieces of wood differ or all be the same?

Answer: differ

Question: Distinguishing motifs of Islamic architecture have always been ordered repetition, radiating structures, and rhythmic, metric patterns. In this respect, fractal geometry has been a key utility, especially for mosques and palaces. Other features employed as motifs include columns, piers and arches, organized and interwoven with alternating sequences of niches and colonnettes. The role of domes in Islamic architecture has been considerable. Its usage spans centuries, first appearing in 691 with the construction of the Dome of the Rock mosque, and recurring even up until the 17th century with the Taj Mahal. And as late as the 19th century, Islamic domes had been incorporated into European architecture.
Is there an answer to this question: What physical characteristics are common in Islamic architecture?

Answer:
columns, piers and arches