Problem: Gene:

The vast majority of living organisms encode their genes in long strands of DNA (deoxyribonucleic acid). DNA consists of a chain made from four types of nucleotide subunits, each composed of: a five-carbon sugar (2'-deoxyribose), a phosphate group, and one of the four bases adenine, cytosine, guanine, and thymine.:2.1

What do the vast majority of living organisms encode their genes in?
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A: long strands of DNA (deoxyribonucleic acid)

Problem: Under German control, and even before then, Japanese traders and fishermen from time to time visited the Marshall Islands, although contact with the islanders was irregular. After the Meiji Restoration (1868), the Japanese government adopted a policy of turning the Japanese Empire into a great economic and military power in East Asia.
Along with fishermen, what sort of Japanese people visited the Marshalls?
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Answer: traders

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Greece attracts more than 16 million tourists each year, thus contributing 18.2% to the nation's GDP in 2008 according to an OECD report. The same survey showed that the average tourist expenditure while in Greece was $1,073, ranking Greece 10th in the world. The number of jobs directly or indirectly related to the tourism sector were 840,000 in 2008 and represented 19% of the country's total labor force. In 2009, Greece welcomed over 19.3 million tourists, a major increase from the 17.7 million tourists the country welcomed in 2008.
How many tourists did Greece refuse in 2009?
A: unanswerable

Context and question: Thermal mass is any material that can be used to store heatheat from the Sun in the case of solar energy. Common thermal mass materials include stone, cement and water. Historically they have been used in arid climates or warm temperate regions to keep buildings cool by absorbing solar energy during the day and radiating stored heat to the cooler atmosphere at night. However, they can be used in cold temperate areas to maintain warmth as well. The size and placement of thermal mass depend on several factors such as climate, daylighting and shading conditions. When properly incorporated, thermal mass maintains space temperatures in a comfortable range and reduces the need for auxiliary heating and cooling equipment.
What does thermal mass reduce the need for?
Answer: auxiliary heating and cooling equipment

Question: Four separate and distinct state universities are located in Houston. The University of Houston is a nationally recognized Tier One research university, and is the flagship institution of the University of Houston System. The third-largest university in Texas, the University of Houston has nearly 40,000 students on its 667-acre campus in southeast Houston. The University of HoustonClear Lake and the University of HoustonDowntown are stand-alone universities; they are not branch campuses of the University of Houston. Located in the historic community of Third Ward is Texas Southern University, one of the largest historically black colleges and universities in the United States.
Is there an answer to this question: How many students does the University of Houston have?

Answer: 40,000

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In 1988, only 60,000 computers were connected to the Internet, and most were mainframes, minicomputers and professional workstations. On November 2, 1988, many started to slow down, because they were running a malicious code that demanded processor time and that spread itself to other computers the first internet "computer worm". The software was traced back to 23-year-old Cornell University graduate student Robert Tappan Morris, Jr. who said 'he wanted to count how many machines were connected to the Internet'.
Who tracked down the first computer worm?
A:
unanswerable