Problem: Clothing:

According to archaeologists and anthropologists, the earliest clothing likely consisted of fur, leather, leaves, or grass that were draped, wrapped, or tied around the body. Knowledge of such clothing remains inferential, since clothing materials deteriorate quickly compared to stone, bone, shell and metal artifacts. Archeologists have identified very early sewing needles of bone and ivory from about 30,000 BC, found near Kostenki, Russia in 1988. Dyed flax fibers that could have been used in clothing have been found in a prehistoric cave in the Republic of Georgia that date back to 36,000 BP.

Where have we not yet found flax fibers
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A: unanswerable


Problem: The firm continued to pressure Kelsey and the agency to approve the application—until November 1961, when the drug was pulled off the German market because of its association with grave congenital abnormalities. Several thousand newborns in Europe and elsewhere suffered the teratogenic effects of thalidomide. Though the drug was never approved in the USA, the firm distributed Kevadon to over 1,000 physicians there under the guise of investigational use. Over 20,000 Americans received thalidomide in this "study," including 624 pregnant patients, and about 17 known newborns suffered the effects of the drug.[citation needed]
How many newborn American babies were affected by thalidomide?
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Answer: 17


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
President Richard Nixon declared current species conservation efforts to be inadequate and called on the 93rd United States Congress to pass comprehensive endangered species legislation. Congress responded with a completely rewritten law, the Endangered Species Act of 1973 which was signed by Nixon on December 28, 1973 (Pub.L. 93–205). It was written by a team of lawyers and scientists, including the first appointed head of the Council on Environmental Quality (CEQ),an outgrowth of NEPA (The "National Environmental Policy Act of 1969") Dr. Russell E. Train. Dr. Train was assisted by a core group of staffers, including Dr. Earl Baysinger at EPA (currently Assistant Chief, Office of Endangered Species and International. Activities), Dick Gutting (U.S. Commerce Dept. lawyer, currently joined NOAA the previous year (1972), and Dr. Gerard A. "Jerry" Bertrand, a marine biologist (Ph.D, Oregon State University) by training, who had transferred from his post as the Scientific Adviser to the U.S Army Corps of Engineers, office of the Commandant of the Corp. to join the newly formed White House office. The staff, under Dr. Train's leadership, incorporated dozens of new principles and ideas into the landmark legislation; crafting a document that completely changed the direction of environmental conservation in the United States. Dr. Bertrand is credited with writing the most challenged section of the Act, the "takings" clause - Section 2.
Who led the team of lawyers and scientists who crafted the Endangered Species Act of 1973?
A: Dr. Russell E. Train


Context and question: The Illuminating Engineering Society of North America (IESNA), in conjunction with organizations like ANSI and ASHRAE, publishes guidelines, standards, and handbooks that allow categorization of the illumination needs of different built environments. Manufacturers of lighting equipment publish photometric data for their products, which defines the distribution of light released by a specific luminaire. This data is typically expressed in standardized form defined by the IESNA.
Who else publishes along with IESNA? 
Answer: ANSI and ASHRAE


Question: Not all of these cultural elements characteristic of the Neolithic appeared everywhere in the same order: the earliest farming societies in the Near East did not use pottery. In other parts of the world, such as Africa, South Asia and Southeast Asia, independent domestication events led to their own regionally distinctive Neolithic cultures that arose completely independent of those in Europe and Southwest Asia. Early Japanese societies and other East Asian cultures used pottery before developing agriculture.
Is there an answer to this question: What did the use of pottery help early African societies develop?

Answer: unanswerable


Question: The 1960s and 1970s saw an acceleration in the decolonisation of Africa and the Caribbean. Over 20 countries gained independence from Britain as part of a planned transition to self-government. In 1965, however, the Rhodesian Prime Minister, Ian Smith, in opposition to moves toward majority rule, declared unilateral independence from Britain while still expressing "loyalty and devotion" to Elizabeth. Although the Queen dismissed him in a formal declaration, and the international community applied sanctions against Rhodesia, his regime survived for over a decade. As Britain's ties to its former empire weakened, the British government sought entry to the European Community, a goal it achieved in 1973.
Is there an answer to this question: What was the last of 20 countries to gain independence from Britain?

Answer:
unanswerable