Here is a question about this article: A monument to the huge human cost of some of the gigantic construction projects of the early Ming dynasty is the Yangshan Quarry (located some 15–20 km (9–12 mi) east of the walled city and Ming Xiaoling mausoleum), where a gigantic stele, cut on the orders of the Yongle Emperor, lies abandoned, just as it was left 600 years ago when it was understood it was impossible to move or complete it.
What is the answer to this question: How far from Nanjing is the Yangshan Quarry?
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So... 15–20 km (9–12 mi) east of the walled city


Here is a question about this article: According to the International Organization for Migration, Nigeria witnessed a dramatic increase in remittances sent home from overseas Nigerians, going from USD 2.3 billion in 2004 to 17.9 billion in 2007. The United States accounts for the largest portion of official remittances, followed by the United Kingdom, Italy, Canada, Spain and France. On the African continent, Egypt, Equatorial Guinea, Chad, Libya and South Africa are important source countries of remittance flows to Nigeria, while China is the biggest remittance-sending country in Asia.
What is the answer to this question: Which country has Nigerians sending the second-most money home?
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So... United Kingdom


Here is a question about this article: The island had a monocrop economy until 1966, based on the cultivation and processing of New Zealand flax for rope and string. St Helena's economy is now weak, and is almost entirely sustained by aid from the British government. The public sector dominates the economy, accounting for about 50% of gross domestic product. Inflation was running at 4% in 2005. There have been increases in the cost of fuel, power and all imported goods.
What is the answer to this question: What year did the crop economy change?
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So...
1966