Problem: Paris:

The Paris Region is France's leading region for economic activity, with a 2012 GDP of €624 billion (US$687 billion). In 2011, its GDP ranked second among the regions of Europe and its per-capita GDP was the 4th highest in Europe. While the Paris region's population accounted for 18.8 percent of metropolitan France in 2011, the Paris region's GDP accounted for 30 percent of metropolitan France's GDP. In 2015 it hosts the world headquarters of 29 of the 31 Fortune Global 500 companies located in France.

What percentage of Frances GDP is made up from the Paris Region's GDP?
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A: 30


Problem: 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.
What are some devices thought to be when in the process of invention?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The current Chief of the Defence Staff, the professional head of the British Armed Forces, is General Sir Nicholas Houghton, late Green Howards. He is supported by the Vice Chief of the Defence Staff, by the professional heads of the three services of HM Armed Forces and by the Commander of Joint Forces Command.
Who is the current Commander of Joint Forces Command?
A: unanswerable


Context and question: With the record company a global operation in 1965, the Columbia Broadcasting System upper management started pondering changing the name of their record company subsidiary from Columbia Records to CBS Records.
In 1955, CBS was a global what?
Answer: unanswerable


Question: Photometric studies (also sometimes referred to as "layouts" or "point by points") are often used to simulate lighting designs for projects before they are built or renovated. This enables architects, lighting designers, and engineers to determine whether a proposed lighting setup will deliver the amount of light intended. They will also be able to determine the contrast ratio between light and dark areas. In many cases these studies are referenced against IESNA or CIBSE recommended lighting practices for the type of application. Depending on the type of area, different design aspects may be emphasized for safety or practicality (i.e. such as maintaining uniform light levels, avoiding glare or highlighting certain areas). Specialized software is often used to create these, which typically combine the use of two-dimensional digital CAD drawings and lighting calculation software (i.e. AGi32or Dialux).
Is there an answer to this question: What type of study is used to simulate lighting designs?

Answer: Photometric studies


Problem: Plymouth:

The redevelopment of the city was planned by Sir Patrick Abercrombie in his 1943 Plan for Plymouth whilst simultaneously working on the reconstruction plan for London. Between 1951 and 1957 over 1000 homes were completed every year mostly using innovative prefabricated systems of just three main types; by 1964 over 20,000 new homes had been built transforming the dense overcrowded and unsanitary slums of the pre-war city into a low density, dispersed suburbia. Most of the city centre shops had been destroyed and those that remained were cleared to enable a zoned reconstruction according to his plan. In 1962 the modernist high rise of the Civic Centre was constructed, an architecturally significant example of mid twentieth century civic slab-and-tower set piece allowed to fall into disrepair by its owner Plymouth City Council but recently grade II listed by English Heritage to prevent its demolition.

When was the Civic Centre built?
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A:
1962