Problem: Financial crisis of 2007%E2%80%9308:

The Fed then raised the Fed funds rate significantly between July 2004 and July 2006. This contributed to an increase in 1-year and 5-year adjustable-rate mortgage (ARM) rates, making ARM interest rate resets more expensive for homeowners. This may have also contributed to the deflating of the housing bubble, as asset prices generally move inversely to interest rates, and it became riskier to speculate in housing. U.S. housing and financial assets dramatically declined in value after the housing bubble burst.

When did the Fed begin raising Fed funds rate significantly?
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A: July 2004

Problem: In the United States, 25 Hz, a once-common industrial power frequency is used on Amtrak's 25 Hz traction power system at 12 kV on the Northeast Corridor between Washington, D.C. and New York City and on the Keystone Corridor between Harrisburg, Pennsylvania and Philadelphia. SEPTA's 25 Hz traction power system uses the same 12 kV voltage on the catenary in Northeast Philadelphia. This allows for the trains to operate on both the Amtrak and SEPTA power systems. Apart from having an identical catenary voltage, the power distribution systems of Amtrak and SEPTA are very different. The Amtrak power distribution system has a 138 kV transmission network that provides power to substations which then transform the voltage to 12 kV to feed the catenary system. The SEPTA power distribution system uses a 2:1 ratio autotransformer system, with the catenary fed at 12 kV and a return feeder wire fed at 24 kV. The New York, New Haven and Hartford Railroad used an 11 kV system between New York City and New Haven, Connecticut which was converted to 12.5 kV 60 Hz in 1987.
What frequency was typically used on US Amtrak?
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Answer: 25 Hz

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".

XML databases are a type of structured document-oriented database that allows querying based on XML document attributes. XML databases are mostly used in enterprise database management, where XML is being used as the machine-to-machine data interoperability standard. XML database management systems include commercial software MarkLogic and Oracle Berkeley DB XML, and a free use software Clusterpoint Distributed XML/JSON Database. All are enterprise software database platforms and support industry standard ACID-compliant transaction processing with strong database consistency characteristics and high level of database security.
Where are XML databases frequently used?
A: enterprise database management

Context and question: In literature and journalism, BYU has produced several best-selling authors, including Orson Scott Card '75, Brandon Sanderson '00 & '05, Ben English '98, and Stephenie Meyer '95. BYU also graduated American activist and contributor for ABC News Elizabeth Smart-Gilmour. Other media personalities include former CBS News correspondent Art Rascon, award-winning ESPN sportscaster and former Miss America Sharlene Wells Hawkes '86 and former co-host of CBS's The Early Show Jane Clayson Johnson '90. In entertainment and television, BYU is represented by Jon Heder '02 (best known for his role as Napoleon Dynamite), writer-director Daryn Tufts '98, Golden Globe-nominated Aaron Eckhart '94, animator and filmmaker Don Bluth '54, Jeopardy! all-time champion Ken Jennings '00, and Richard Dutcher, the "Father of Mormon Cinema." In the music industry BYU is represented by lead singer of the Grammy Award winning band Imagine Dragons Dan Reynolds, multi-platinum selling drummer Elaine Bradley from the band Neon Trees, crossover dubstep violinist Lindsey Stirling, former American Idol contestant Carmen Rasmusen, Mormon Tabernacle Choir director Mack Wilberg and pianist Massimiliano Frani.
Which award winning ESPN sports writer graduated form BYU?
Answer: Sharlene Wells Hawkes

Question: Time travel is the concept of moving backwards or forwards to different points in time, in a manner analogous to moving through space, and different from the normal "flow" of time to an earthbound observer. In this view, all points in time (including future times) "persist" in some way. Time travel has been a plot device in fiction since the 19th century. Traveling backwards in time has never been verified, presents many theoretic problems, and may be an impossibility. Any technological device, whether fictional or hypothetical, that is used to achieve time travel is known as a time machine.
Is there an answer to this question: A time machine is known as any technological devise that is used for what purpose?

Answer: to achieve time travel

QUES: The war had removed Bermuda's primary trading partners, the American colonies, from the empire, and dealt a harsh blow to Bermuda's merchant shipping trade. This also suffered due to the deforestation of Bermuda, as well as the advent of metal ships and steam propulsion, for which it did not have raw materials. During the course of the following War of 1812, the primary market for Bermuda's salt disappeared as the Americans developed their own sources. Control of the Turks had passed to the Bahamas in 1819.

What is a factor that hurt Bermuda's merchant shipping?
What is the answer?
ANS:
deforestation