Problem: Memory:

Stressful life experiences may be a cause of memory loss as a person ages. Glucocorticoids that are released during stress damage neurons that are located in the hippocampal region of the brain. Therefore, the more stressful situations that someone encounters, the more susceptible they are to memory loss later on. The CA1 neurons found in the hippocampus are destroyed due to glucocorticoids decreasing the release of glucose and the reuptake of glutamate. This high level of extracellular glutamate allow calcium to enter NMDA receptors which in return kills neurons. Stressful life experiences can also cause repression of memories where a person moves an unbearable memory to the unconscious mind. This directly relates to traumatic events in one's past such as kidnappings, being prisoners of war or sexual abuse as a child.

What will a person often do with extremely stressful thoughts?
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A: unanswerable


Problem: The top 50 m (160 ft) of a glacier are rigid because they are under low pressure. This upper section is known as the fracture zone and moves mostly as a single unit over the plastically flowing lower section. When a glacier moves through irregular terrain, cracks called crevasses develop in the fracture zone. Crevasses form due to differences in glacier velocity. If two rigid sections of a glacier move at different speeds and directions, shear forces cause them to break apart, opening a crevasse. Crevasses are seldom more than 46 m (150 ft) deep but in some cases can be 300 m (1,000 ft) or even deeper. Beneath this point, the plasticity of the ice is too great for cracks to form. Intersecting crevasses can create isolated peaks in the ice, called seracs.
Why is the lower 50m of a glacier rigid?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Internet was extensively used for passing information to aid rescue and recovery efforts. For example, the official news agency Xinhua set up an online rescue request center in order to find the blind spots of disaster recovery. After knowing that rescue helicopters had trouble landing into the epicenter area in Wenchuan, a student proposed a landing spot online and it was chosen as the first touchdown place for the helicopters[not in citation given]. Volunteers also set up several websites to help store contact information for victims and evacuees. On May 31, a rescue helicopter carrying earthquake survivors and crew members crashed in fog and turbulence in Wenchuan county. No-one survived.
On what date did a rescue helicopter crash with no survivors?
A: May 31


Context and question: In Estonian, nouns and pronouns do not have grammatical gender, but nouns and adjectives decline in fourteen cases: nominative, genitive, partitive, illative, inessive, elative, allative, adessive, ablative, translative, terminative, essive, abessive, and comitative, with the case and number of the adjective(s) always agreeing with that of the noun (except in the terminative, essive, abessive and comitative, where there is agreement only for the number, the adjective being in the genitive form). Thus the illative for kollane maja ("a yellow house") is kollasesse majja ("into a yellow house"), but the terminative is kollase majani ("as far as a yellow house"). With respect to the Proto-Finnic language, elision has occurred; thus, the actual case marker may be absent, but the stem is changed, cf. maja – majja and the Pohjanmaa dialect of Finnish maja – majahan.
How many cases to verbs decline?
Answer: unanswerable


Question: Raleigh-Durham International Airport, the region's primary airport and the second-largest in North Carolina, located northwest of downtown Raleigh via Interstate-40 between Raleigh and Durham, serves the city and greater Research Triangle metropolitan region, as well as much of eastern North Carolina. The airport offers service to more than 35 domestic and international destinations and serves approximately 10 million passengers a year. The airport also offers facilities for cargo and general aviation. The airport authority tripled the size of its Terminal 2 (formerly Terminal C) in January 2011.
Is there an answer to this question:  What are there 20 million of each year at the airport?

Answer: unanswerable


QUES: Most former British colonies and protectorates are among the 53 member states of the Commonwealth of Nations, a non-political, voluntary association of equal members, comprising a population of around 2.2 billion people. Sixteen Commonwealth realms voluntarily continue to share the British monarch, Queen Elizabeth II, as their head of state. These sixteen nations are distinct and equal legal entities – the United Kingdom, Australia, Canada, New Zealand, Papua New Guinea, Antigua and Barbuda, The Bahamas, Barbados, Belize, Grenada, Jamaica, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Solomon Islands and Tuvalu.

Who is the British Queen?
What is the answer?
ANS:
Elizabeth II