Problem: LaserDisc:

By the early 2000s, LaserDisc was completely replaced by DVD in the North American retail marketplace, as neither players nor software were then produced. Players were still exported to North America from Japan until the end of 2001. The format has retained some popularity among American collectors, and to a greater degree in Japan, where the format was better supported and more prevalent during its life. In Europe, LaserDisc always remained an obscure format. It was chosen by the British Broadcasting Corporation (BBC) for the BBC Domesday Project in the mid-1980s, a school-based project to commemorate 900 years since the original Domesday Book in England. From 1991 up until the early 2000s, the BBC also used LaserDisc technology to play out the channel idents.

Which country still exported players to North America until 2001?
---
A: Japan

Problem: Starting in 2010/2011, Hauptschulen were merged with Realschulen and Gesamtschulen to form a new type of comprehensive school in the German States of Berlin and Hamburg, called Stadtteilschule in Hamburg and Sekundarschule in Berlin (see: Education in Berlin, Education in Hamburg).
What was the combination of Hauptschulen with Realschulen and Gesamtschulen called in Berlinberg?
---
Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
A major battleground, Burma was devastated during World War II. By March 1942, within months after they entered the war, Japanese troops had advanced on Rangoon and the British administration had collapsed. A Burmese Executive Administration headed by Ba Maw was established by the Japanese in August 1942. Wingate's British Chindits were formed into long-range penetration groups trained to operate deep behind Japanese lines. A similar American unit, Merrill's Marauders, followed the Chindits into the Burmese jungle in 1943. Beginning in late 1944, allied troops launched a series of offensives that led to the end of Japanese rule in July 1945. The battles were intense with much of Burma laid waste by the fighting. Overall, the Japanese lost some 150,000 men in Burma. Only 1,700 prisoners were taken.
Where groups from Burma an advantage to the Allies during WWII?
A: British Chindits were formed into long-range penetration groups trained to operate deep behind Japanese lines. A similar American unit, Merrill's Marauders

Context and question: In April 2010, Shell announced its intention to divest from downstream business of all African countries except South Africa and Egypt to Vitol and "Helios". In several countries such as Tunisia, protests and strikes broke out. Shell denied rumours of the sellout. Shell continues however upstream activities/extracting crude oil in the oil-rich Niger Delta as well as downstream/commercial activities in South Africa. In June 2013, the company announced a strategic review of its operations in Nigeria, hinting that assets could be divested. In August 2014, the company disclosed it was in the process of finalizing the sale of its interests in four Nigerian oil fields.
When did protests break out in South Africa?
Answer: unanswerable

Question: As of 2013, the global advertising agencies of Omnicom Group and Interpublic Group, both based in Manhattan, had combined annual revenues of approximately US$21 billion, reflecting New York City's role as the top global center for the advertising industry, which is metonymously referred to as "Madison Avenue". The city's fashion industry provides approximately 180,000 employees with $11 billion in annual wages.
Is there an answer to this question: NYC's fashion industry employs how many people?

Answer: 180,000

QUES: Solar energy may be used in a water stabilisation pond to treat waste water without chemicals or electricity. A further environmental advantage is that algae grow in such ponds and consume carbon dioxide in photosynthesis, although algae may produce toxic chemicals that make the water unusable.

For what reason would solar energy be used in a water stabilisation pond?
What is the answer?
ANS:
to treat waste water without chemicals or electricity