The problem: Answer a question about this article:
Other legal factors that have been implemented to end and reduce child labour includes the global response that came into force in 1979 by the declaration of the International Year of the Child. Along with the Human Rights Committee of the United Nations, these two declarations worked on many levels to eliminate child labour. Although many actions have been taken to end this epidemic, child labour in Africa is still an issue today due to the unclear definition of adolescence and how much time is needed for children to engage in activities that are crucial for their development. Another issue that often comes into play is the link between what constitutes as child labour within the household due to the cultural acceptance of children helping run the family business. In the end, there is a consistent challenge for the national government to strengthen its grip politically on child labour, and to increase education and awareness on the issue of children working below the legal age limit. With children playing an important role in the African economy, child labour still plays an important role for many in the 20th century.
What is an issue in Africa with child labour definitions?
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The answer: unclear definition of adolescence

Problem: Please answer a question about the following article about Quran:
Esoteric or Sufi interpretation attempts to unveil the inner meanings of the Quran. Sufism moves beyond the apparent (zahir) point of the verses and instead relates Quranic verses to the inner or esoteric (batin) and metaphysical dimensions of consciousness and existence. According to Sands, esoteric interpretations are more suggestive than declarative, they are allusions (isharat) rather than explanations (tafsir). They indicate possibilities as much as they demonstrate the insights of each writer.
What Arabic word describes the aspects of Quranic verses that Sufism tries to push beyond?
A: zahir

Question: Read this and answer the question

In terms of total number of ships, the Greek Merchant Navy stands at 4th worldwide, with 3,150 ships (741 of which are registered in Greece whereas the rest 2,409 in other ports). In terms of ship categories, Greece ranks first in both tankers and dry bulk carriers, fourth in the number of containers, and fifth in other ships. However, today's fleet roster is smaller than an all-time high of 5,000 ships in the late 1970s. Additionally, the total number of ships flying a Greek flag (includes non-Greek fleets) is 1,517, or 5.3% of the world's dwt (ranked 5th).

Where is the Greek Merchant Navy ranked?
Answer: 4th worldwide

Problem: Switzerland's most important economic sector is manufacturing. Manufacturing consists largely of the production of specialist chemicals, health and pharmaceutical goods, scientific and precision measuring instruments and musical instruments. The largest exported goods are chemicals (34% of exported goods), machines/electronics (20.9%), and precision instruments/watches (16.9%). Exported services amount to a third of exports. The service sector especially banking and insurance, tourism, and international organisations is another important industry for Switzerland.
What accounts for 16.9% of Switzerland's exported goods?
The answer is the following: precision instruments/watches

Bomber crews already had some experience with these types of systems due to the deployment of the Lorenz beam, a commercial blind-landing aid which allowed aircraft to land at night or in bad weather. The Germans developed the short-range Lorenz system into the Knickebein aid, a system which used two Lorenz beams with much stronger signal transmissions. The concept was the same as the Lorenz system. Two aerials were rotated for the two converging beams which were pointed to cross directly over the target. The German bombers would attach themselves to either beam and fly along it until they started to pick up the signal from the other beam. When a continuous sound was heard from the second beam the crew knew they were above the target and began dropping their bombs.
The Germans flew along one beam until they picked up the second beam the sound telling them when to start doing what?
dropping their bombs

Here is a question about this article: One of the first demonstrations of the ability for telecommunications to help sign language users communicate with each other occurred when AT&T's videophone (trademarked as the "Picturephone") was introduced to the public at the 1964 New York World's Fair two deaf users were able to communicate freely with each other between the fair and another city. Various universities and other organizations, including British Telecom's Martlesham facility, have also conducted extensive research on signing via videotelephony. The use of sign language via videotelephony was hampered for many years due to the difficulty of its use over slow analogue copper phone lines, coupled with the high cost of better quality ISDN (data) phone lines. Those factors largely disappeared with the introduction of more efficient video codecs and the advent of lower cost high-speed ISDN data and IP (Internet) services in the 1990s.
What is the answer to this question: In what decade were more efficient ways of using sign language via video-telephony developed?
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So...
1990s