Problem: Queen Victoria:

Victoria's youngest son, Leopold, was affected by the blood-clotting disease haemophilia B and two of her five daughters, Alice and Beatrice, were carriers. Royal haemophiliacs descended from Victoria included her great-grandsons, Tsarevich Alexei of Russia, Alfonso, Prince of Asturias, and Infante Gonzalo of Spain. The presence of the disease in Victoria's descendants, but not in her ancestors, led to modern speculation that her true father was not the Duke of Kent but a haemophiliac. There is no documentary evidence of a haemophiliac in connection with Victoria's mother, and as male carriers always suffer the disease, even if such a man had existed he would have been seriously ill. It is more likely that the mutation arose spontaneously because Victoria's father was over 50 at the time of her conception and haemophilia arises more frequently in the children of older fathers. Spontaneous mutations account for about a third of cases.

How many of Victorias sons were carriers of the blood clotting disease that Leopold had?
---
A: unanswerable

Problem: There are four categories of terra nullius, land that is unclaimed by any state: the small unclaimed territory of Bir Tawil between Egypt and Sudan, Antarctica, the oceans, and celestial bodies such as the Moon or Mars. In the last three of these, international treaties (the Antarctic Treaty, the United Nations Convention on the Law of the Sea, and the Outer Space Treaty respectively) prevent colonization and potential statehood of any of these uninhabited (and, given current technology, not permanently inhabitable) territories.
Where is Bir Tawil located?
---
Answer: between Egypt and Sudan

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Houston area is a leading center for building oilfield equipment. Much of its success as a petrochemical complex is due to its busy ship channel, the Port of Houston. In the United States, the port ranks first in international commerce and tenth among the largest ports in the world. Unlike most places, high oil and gasoline prices are beneficial for Houston's economy, as many of its residents are employed in the energy industry. Houston is the beginning or end point of numerous oil, gas, and products pipelines:
What lines begin or end in Houston?
A: pipelines

Context and question: The World Bank has sponsored a project to curb air pollution through public transport improvements and the Mexican government has started shutting down polluting factories. They have phased out diesel buses and mandated new emission controls on new cars; since 1993 all new cars must be fitted with a catalytic converter, which reduces the emissions released. Trucks must use only liquefied petroleum gas (LPG). Also construction of an underground rail system was begun in 1968 in order to help curb air pollution problems and alleviate traffic congestion. Today it has over 201 km (125 mi) of track and carries over 5 million people every day. Fees are kept low to encourage use of the system and during rush hours the crush is so great, that authorities have reserved a special carriage specifically for women. Due to these initiatives and others, the air quality in Mexico City has begun to improve, with the air becoming cleaner since 1991, when the air quality was declared to be a public health risk for 355 days of the year.[citation needed]
How many days of the year in 1991 was the air pollution a serious health risk?
Answer: 355

Question: Burke supported the war against revolutionary France, seeing Britain as fighting on the side of the royalists and emigres in a civil war, rather than fighting against the whole nation of France. Burke also supported the royalist uprising in La Vendee, describing it on 4 November 1793 in a letter to William Windham, as "the sole affair I have much heart in". Burke wrote to Henry Dundas on 7 October urging him to send reinforcements there, as he viewed it as the only theatre in the war that might lead to a march on Paris. Dundas did not follow Burke's advice, however.
Is there an answer to this question: Whose advice did Dundas heed?

Answer: unanswerable

Governments of Republic of Turkey since that time have consistently rejected charges of genocide, typically arguing either that those Armenians who died were simply in the way of a war or that killings of Armenians were justified by their individual or collective support for the enemies of the Ottoman Empire. Passage of legislation in various foreign countries condemning the persecution of the Armenians as genocide has often provoked diplomatic conflict. (See Recognition of the Armenian Genocide)
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who ruled Turkey when the Armenian genocide happened?
Ah, so..
the Ottoman Empire