Problem: Daylight saving time:

Although they did not fix their schedules to the clock in the modern sense, ancient civilizations adjusted daily schedules to the sun more flexibly than modern DST does, often dividing daylight into twelve hours regardless of day length, so that each daylight hour was longer during summer. For example, Roman water clocks had different scales for different months of the year: at Rome's latitude the third hour from sunrise, hora tertia, started by modern standards at 09:02 solar time and lasted 44 minutes at the winter solstice, but at the summer solstice it started at 06:58 and lasted 75 minutes. After ancient times, equal-length civil hours eventually supplanted unequal, so civil time no longer varies by season. Unequal hours are still used in a few traditional settings, such as some Mount Athos monasteries and all Jewish ceremonies.

What did the Romans call the third hour before sunrise?
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A: hora tertia

Problem: Disagreements over the island's relationship with Australia were put in sharper relief by a 2006 review undertaken by the Australian government. Under the more radical of two models proposed in the review, the island's legislative assembly would have been reduced to the status of a local council. However, in December 2006, citing the "significant disruption" that changes to the governance would impose on the island's economy, the Australian government ended the review leaving the existing governance arrangements unaltered.
What did the Australian government say that changes to Norfolk Island's government would not cause?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Some Belgian cities hold Carnivals during Lent. One of the best-known is Stavelot, where the Carnival de la Laetare takes place on Laetare Sunday, the fourth Sunday of Lent. The participants include the Blancs-Moussis, who dress in white, carry long red noses and parade through town attacking bystanders with confetti and dried pig bladders. The town of Halle also celebrates on Laetare Sunday. Belgium's oldest parade is the Carnival Parade of Maaseik, also held on Laetare Sunday, which originated in 1865.
What day does the town of Halle engage in its celebration?
A: Laetare Sunday

Context and question: Education is compulsory from the age of 7 to 13. The enrollment of boys is higher than that of girls. In 1998, the gross primary enrollment rate was 53.5%, with higher enrollment ratio for males (67.7%) compared to females (40%).
What are the ages when education is compulsory?
Answer: 7 to 13

Question: Internationally, Nigeria is infamous for a form of bank fraud dubbed 419, a type of advance fee fraud (named after Section 419 of the Nigerian Penal Code) along with the "Nigerian scam", a form of confidence trick practised by individuals and criminal syndicates. These scams involve a complicit Nigerian bank (the laws being set up loosely to allow it) and a scammer who claims to have money he needs to obtain from that bank. The victim is talked into exchanging bank account information on the premise that the money will be transferred to him, and then he'll get to keep a cut. In reality, money is taken out instead, and/or large fees (which seem small in comparison with the imaginary wealth he awaits) are deducted. In 2003, the Nigerian Economic and Financial Crimes Commission (or EFCC) was created, ostensibly to combat this and other forms of organised financial crime.
Is there an answer to this question: What type of scam is the 419 scam?

Answer: advance fee fraud

Problem: 2008 Sichuan earthquake:

In 2002, Chinese geologist Chen Xuezhong published a Seismic Risk Analysis study in which he came to the conclusion that beginning with 2003, attention should be paid to the possibility of an earthquake with a magnitude of over 7.0 occurring in Sichuan region. He based his study on statistical correlation. That Sichuan is a seismically active area has been discussed for years prior to the quake, though few studies point to a specific date and time.

When was a Seismic Risk Analysis published?
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A:
In 2002