The problem: Answer a question about this article:
Persistent heavy rain and landslides in Wenchuan County and the nearby area badly affected rescue efforts. At the start of rescue operations on May 12, 20 helicopters were deployed for the delivery of food, water, and emergency aid, and also the evacuation of the injured and reconnaissance of quake-stricken areas. By 17:37 CST on May 13, a total of over 15,600 troops and militia reservists from the Chengdu Military Region had joined the rescue force in the heavily affected areas. A commander reported from Yingxiu Town, Wenchuan, that around 3,000 survivors were found, while the status of the other inhabitants (around 9,000) remained unclear. The 1,300 rescuers reached the epicenter, and 300 pioneer troops reached the seat of Wenchuan at about 23:30 CST. By 12:17 CST, May 14, 2008, communication in the seat of Wenchuan was partly revived. On the afternoon of May 14, 15 Special Operations Troops, along with relief supplies and communications gear, parachuted into inaccessible Mao County, northeast of Wenchuan.
How many helicopters were sent to deliver aid to the affected areas?
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The answer: 20

The problem: Answer a question about this article:
When the alloy cools and solidifies (crystallizes), its mechanical properties will often be quite different from those of its individual constituents. A metal that is normally very soft and malleable, such as aluminium, can be altered by alloying it with another soft metal, like copper. Although both metals are very soft and ductile, the resulting aluminium alloy will be much harder and stronger. Adding a small amount of non-metallic carbon to iron produces an alloy called steel. Due to its very-high strength and toughness (which is much higher than pure iron), and its ability to be greatly altered by heat treatment, steel is one of the most common alloys in modern use. By adding chromium to steel, its resistance to corrosion can be enhanced, creating stainless steel, while adding silicon will alter its electrical characteristics, producing silicon steel.
How is steel produced?
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The answer: Adding a small amount of non-metallic carbon to iron

The problem: Answer a question about this article:
Until the 1970s most of the larger pubs also featured an off-sales counter or attached shop for the sales of beers, wines and spirits for home consumption. In the 1970s the newly built supermarkets and high street chain stores or off-licences undercut the pub prices to such a degree that within ten years all but a handful of pubs had closed their off-sale counters, which had often been referred to colloquially as the jug and bottle.
In what decade did pubs tend to cease selling alcohol for off-premises drinking?
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The answer: 1970s

The problem: Answer a question about this article:
On 28 January 2012, police arrested four current and former staff members of The Sun, as part of a probe in which journalists paid police officers for information; a police officer was also arrested in the probe. The Sun staffers arrested were crime editor Mike Sullivan, head of news Chris Pharo, former deputy editor Fergus Shanahan, and former managing editor Graham Dudman, who since became a columnist and media writer. All five arrested were held on suspicion of corruption. Police also searched the offices of News International, the publishers of The Sun, as part of a continuing investigation into the News of the World scandal.
What role had Graham Dudman taken after serving as The Sun managing editor?
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The answer:
columnist and media writer