Question: After 12 years as commissioner of the AFL, David Baker retired unexpectedly on July 25, 2008, just two days before ArenaBowl XXII; deputy commissioner Ed Policy was named interim commissioner until Baker's replacement was found. Baker explained, "When I took over as commissioner, I thought it would be for one year. It turned into 12. But now it's time."
Is there an answer to this question: Who was the commissioner of the Arena Football League for the first half of 2008?

Answer: David Baker

Question: Arsenal's parent company, Arsenal Holdings plc, operates as a non-quoted public limited company, whose ownership is considerably different from that of other football clubs. Only 62,217 shares in Arsenal have been issued, and they are not traded on a public exchange such as the FTSE or AIM; instead, they are traded relatively infrequently on the ICAP Securities and Derivatives Exchange, a specialist market. On 10 March 2016, a single share in Arsenal had a mid price of 15,670, which sets the club's market capitalisation value at approximately 975m. Most football clubs aren't listed on an exchange, which makes direct comparisons of their values difficult. Business magazine Forbes valued Arsenal as a whole at $1.3 billion in 2015. Consultants Brand Finance valued the club's brand and intangible assets at $703m in 2015, and consider Arsenal an AAA global brand. Research by the Henley Business School modelled the club's value at 1.118 billion in 2015, the second highest in the Premier League.
Is there an answer to this question: How much does Forbes estimate Arsenal's value to be as of 2017?

Answer: unanswerable

Question: The X-ray crystal density method is primarily a method for determining the Avogadro constant NA but as the Avogadro constant is related to the Planck constant it also determines a value for h. The principle behind the method is to determine NA as the ratio between the volume of the unit cell of a crystal, measured by X-ray crystallography, and the molar volume of the substance. Crystals of silicon are used, as they are available in high quality and purity by the technology developed for the semiconductor industry. The unit cell volume is calculated from the spacing between two crystal planes referred to as d220. The molar volume Vm(Si) requires a knowledge of the density of the crystal and the atomic weight of the silicon used. The Planck constant is given by
Is there an answer to this question: How is unit nucleus volume calculated?

Answer: unanswerable

Question: The United States Mint produces Proof Sets specifically for collectors and speculators. Silver Proofs tend to be the standard designs but with the dime, quarter, and half dollar containing 90% silver. Starting in 1983 and ending in 1997, the Mint also produced proof sets containing the year's commemorative coins alongside the regular coins. Another type of proof set is the Presidential Dollar Proof Set where four special $1 coins are minted each year featuring a president. Because of budget constraints and increasing stockpiles of these relatively unpopular coins, the production of new Presidential dollar coins for circulation was suspended on December 13, 2011, by U.S. Treasury Secretary Timothy F. Geithner. Future minting of such coins will be made solely for collectors.
Is there an answer to this question: When was the production of silver coins suspended?

Answer:
unanswerable