Problem: Race and ethnicity in the United States Census:

The racial categories represent a social-political construct for the race or races that respondents consider themselves to be and "generally reflect a social definition of race recognized in this country." OMB defines the concept of race as outlined for the U.S. Census as not "scientific or anthropological" and takes into account "social and cultural characteristics as well as ancestry", using "appropriate scientific methodologies" that are not "primarily biological or genetic in reference." The race categories include both racial and national-origin groups.

Who defines the concept of race in the United States Census?
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A: OMB

Problem: At all airports the use of a traffic pattern (often called a traffic circuit outside the U.S.) is possible. They may help to assure smooth traffic flow between departing and arriving aircraft. There is no technical need within modern aviation for performing this pattern, provided there is no queue. And due to the so-called SLOT-times, the overall traffic planning tend to assure landing queues are avoided. If for instance an aircraft approaches runway 17 (which has a heading of approx. 170 degrees) from the north (coming from 360/0 degrees heading towards 180 degrees), the aircraft will land as fast as possible by just turning 10 degrees and follow the glidepath, without orbit the runway for visual reasons, whenever this is possible. For smaller piston engined airplanes at smaller airfields without ILS equipment, things are very differently though.
Due to this, the overall traffic planning tend to assure landing queues are avoided.
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Answer: so-called SLOT-times

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Since 1993, the Sodor and Man Diocesan Synod has had power to enact measures making provision "with respect to any matter concerning the Church of England in the Island". If approved by Tynwald, a measure "shall have the force and effect of an Act of Tynwald upon the Royal Assent thereto being announced to Tynwald". Between 1979 and 1993, the Synod had similar powers, but limited to the extension to the Isle of Man of measures of the General Synod. Before 1994, royal assent was granted by Order in Council, as for a bill, but the power to grant royal assent to measures has now been delegated to the lieutenant governor. A Measure does not require promulgation.
Up until 1994, royal assent was given by whom?
A: Order in Council

Context and question: There are seven state parks within the confines of New York City, including Clay Pit Ponds State Park Preserve, a natural area which includes extensive riding trails, and Riverbank State Park, a 28-acre (110,000 m2) facility that rises 69 feet (21 m) over the Hudson River.
How many New York state parks are within New York City?
Answer: seven

Question: The most recent major entrant to the browser market is Chrome, first released in September 2008. Chrome's take-up has increased significantly year by year, by doubling its usage share from 8% to 16% by August 2011. This increase seems largely to be at the expense of Internet Explorer, whose share has tended to decrease from month to month. In December 2011, Chrome overtook Internet Explorer 8 as the most widely used web browser but still had lower usage than all versions of Internet Explorer combined. Chrome's user-base continued to grow and in May 2012, Chrome's usage passed the usage of all versions of Internet Explorer combined. By April 2014, Chrome's usage had hit 45%.
Is there an answer to this question: When did the usage of IE surpass all versions of Chrome combined?

Answer: unanswerable

Once a year between 20082012 the European Formula One Grand Prix took place in the Valencia Street Circuit. Valencia is among with Barcelona, Porto and Monte Carlo the only European cities ever to host Formula One World Championship Grands Prix on public roads in the middle of cities. The final race in 2012 European Grand Prix saw an extremely popular winner, since home driver Fernando Alonso won for Ferrari in spite of starting halfway down the field. The Valencian Community motorcycle Grand Prix (Gran Premi de la Comunitat Valenciana de motociclisme) is part of the Grand Prix motorcycle racing season at the Circuit Ricardo Tormo (also known as Circuit de Valencia). Periodically the Spanish round of the Deutsche Tourenwagen Masters touring car racing Championship (DTM) is held in Valencia.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): In which years was the European Formula One Grand Prix in Valencia?
Ah, so..
20082012