Problem: Florida:

The Gross Domestic Product (GDP) of Florida in 2010 was $748 billion. Its GDP is the fourth largest economy in the United States. In 2010, it became the fourth largest exporter of trade goods. The major contributors to the state's gross output in 2007 were general services, financial services, trade, transportation and public utilities, manufacturing and construction respectively. In 201011, the state budget was $70.5 billion, having reached a high of $73.8 billion in 200607. Chief Executive Magazine name Florida the third "Best State for Business" in 2011.

What was Florida's GDP in 2001?
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A: unanswerable

Problem: Houston:

METRO began light rail service on January 1, 2004, with the inaugural track ("Red Line") running about 8 miles (13 km) from the University of HoustonDowntown (UHD), which traverses through the Texas Medical Center and terminates at NRG Park. METRO is currently in the design phase of a 10-year expansion plan that will add five more lines. and expand the current Red Line. Amtrak, the national passenger rail system, provides service three times a week to Houston via the Sunset Limited (Los AngelesNew Orleans), which stops at a train station on the north side of the downtown area. The station saw 14,891 boardings and alightings in fiscal year 2008. In 2012, there was a 25 percent increase in ridership to 20,327 passengers embarking from the Houston Amtrak station.

When did Houston start using light rail lines?
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A: January 1, 2004

Problem: Green:

In additive color devices such as computer displays and televisions, one of the primary light sources is typically a narrow-spectrum yellowish-green of dominant wavelength ~550 nm; this "green" primary is combined with an orangish-red "red" primary and a purplish-blue "blue" primary to produce any color in between the RGB color model. A unique green (green appearing neither yellowish nor bluish) is produced on such a device by mixing light from the green primary with some light from the blue primary.

What is unique green's wavelength?
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A: unanswerable

Problem: Oklahoma:

Because of Oklahoma's position between zones of differing prevailing temperature and winds, weather patterns within the state can vary widely over relatively short distances and can change drastically in a short time. As an example, on November 11, 1911, the temperature at Oklahoma City reached 83 F (28 C) in the afternoon (the record high for that date), then an Arctic cold front of unprecedented intensity slammed across the state, causing the temperature to crash 66 degrees, down to 17 F (8 C) at midnight (the record low for that date); thus, both the record high and record low for November 11 were set on the same date. This type of phenomenon is also responsible for many of the tornadoes in the area, such as the 1912 Oklahoma tornado outbreak, when a warm front traveled along a stalled cold front, resulting in an average of about one tornado per hour over the course of a day.

What caused Oklahoma's temperature to plummet 66 degrees on Nov 11, 1911?
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A:
an Arctic cold front