Problem: Asphalt:

A number of technologies allow asphalt/bitumen to be mixed at much lower temperatures. These involve mixing with petroleum solvents to form "cutbacks" with reduced melting point, or mixtures with water to turn the asphalt/bitumen into an emulsion. Asphalt emulsions contain up to 70% asphalt/bitumen and typically less than 1.5% chemical additives. There are two main types of emulsions with different affinity for aggregates, cationic and anionic. Asphalt emulsions are used in a wide variety of applications. Chipseal involves spraying the road surface with asphalt emulsion followed by a layer of crushed rock, gravel or crushed slag. Slurry seal involves the creation of a mixture of asphalt emulsion and fine crushed aggregate that is spread on the surface of a road. Cold-mixed asphalt can also be made from asphalt emulsion to create pavements similar to hot-mixed asphalt, several inches in depth and asphalt emulsions are also blended into recycled hot-mix asphalt to create low-cost pavements.

What percentage of bitumen is found in bitumen/water emulsions?
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A: 70%


Problem: Arsenal F.C.:

When Nike took over from Adidas as Arsenal's kit provider in 1994, Arsenal's away colours were again changed to two-tone blue shirts and shorts. Since the advent of the lucrative replica kit market, the away kits have been changed regularly, with Arsenal usually releasing both away and third choice kits. During this period the designs have been either all blue designs, or variations on the traditional yellow and blue, such as the metallic gold and navy strip used in the 2001–02 season, the yellow and dark grey used from 2005 to 2007, and the yellow and maroon of 2010 to 2013. As of 2009, the away kit is changed every season, and the outgoing away kit becomes the third-choice kit if a new home kit is being introduced in the same year.

What traditional Arsenal colors have frequently been employed for away kits?
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A: yellow and blue


Problem: Beyoncé:

Beyoncé has been described as a having a wide-ranging sex appeal, with music journalist Touré writing that since the release of Dangerously in Love, she has "become a crossover sex symbol". Offstage Beyoncé says that while she likes to dress sexily, her onstage dress "is absolutely for the stage." Due to her curves and the term's catchiness, in the 2000s, the media often used the term "Bootylicious" (a portmanteau of the words booty and delicious) to describe Beyoncé, the term popularized by Destiny's Child's single of the same name. In 2006, it was added to the Oxford English Dictionary.

What journalist wrote that Beyoncé was a "sex symbol"?
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A: Touré


Problem: Buckingham Palace:

The house which forms the architectural core of the palace was built for the first Duke of Buckingham and Normanby in 1703 to the design of William Winde. The style chosen was of a large, three-floored central block with two smaller flanking service wings. Buckingham House was eventually sold by Buckingham's descendant, Sir Charles Sheffield, in 1761 to George III for £21,000. Sheffield's leasehold on the mulberry garden site, the freehold of which was still owned by the royal family, was due to expire in 1774.

How much did George III pay for the house?
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A:
£21,000