Input: Mexico City
The Greater Mexico City has a gross domestic product (GDP) of US$411 billion in 2011, making Mexico City urban agglomeration one of the economically largest metropolitan areas in the world. The city was responsible for generating 15.8% of Mexico's Gross Domestic Product and the metropolitan area accounted for about 22% of total national GDP. As a stand-alone country, in 2013, Mexico City would be the fifth-largest economy in Latin Americafive times as large as Costa Rica's and about the same size as Peru's.

Which country has about the same size GDP as Mexico city?
Output: Peru

Input: Article: The largest use of asphalt/bitumen is for making asphalt concrete for road surfaces and accounts for approximately 85% of the asphalt consumed in the United States. Asphalt concrete pavement mixes are typically composed of 5% asphalt/bitumen cement and 95% aggregates (stone, sand, and gravel). Due to its highly viscous nature, asphalt/bitumen cement must be heated so it can be mixed with the aggregates at the asphalt mixing facility. The temperature required varies depending upon characteristics of the asphalt/bitumen and the aggregates, but warm-mix asphalt technologies allow producers to reduce the temperature required. There are about 4,000 asphalt concrete mixing plants in the U.S., and a similar number in Europe.

Now answer this question: How much is the percentage of use of bitumen for roads is there in the US?

Output: 85%

Article: Liquor was another profitable private industry nationalized by the central government in 98 BC. However, this was repealed in 81 BC and a property tax rate of two coins for every 0.2 L (0.05 gallons) was levied for those who traded it privately. By 110 BC Emperor Wu also interfered with the profitable trade in grain when he eliminated speculation by selling government-stored grain at a lower price than demanded by merchants. Apart from Emperor Ming's creation of a short-lived Office for Price Adjustment and Stabilization, which was abolished in 68 AD, central-government price control regulations were largely absent during the Eastern Han.

Question: What office did Emperor Ming create?
Ans: Office for Price Adjustment and Stabilization

Here is a question about this article: In 1941, Nasser was posted to Khartoum, Sudan, which was part of Egypt at the time. Nasser returned to Sudan in September 1942 after a brief stay in Egypt, then secured a position as an instructor in the Cairo Royal Military Academy in May 1943. In 1942, the British Ambassador Miles Lampson marched into King Farouk's palace and ordered him to dismiss Prime Minister Hussein Sirri Pasha for having pro-Axis sympathies. Nasser saw the incident as a blatant violation of Egyptian sovereignty and wrote, "I am ashamed that our army has not reacted against this attack", and wished for "calamity" to overtake the British. Nasser was accepted into the General Staff College later that year. He began to form a group of young military officers with strong nationalist sentiments who supported some form of revolution. Nasser stayed in touch with the group's members primarily through Amer, who continued to seek out interested officers within the Egyptian Armed Force's various branches and presented Nasser with a complete file on each of them.
What is the answer to this question: In what year was Nasser posted to Sudan?
****
So... 1941

The problem: Answer a question about this article:
A handful of families owned large estates (known as haciendas) and controlled the greater part of the land across the state while the vast majority of Chihuahuans were landless. The state economy was largely defined by ranching and mining. At the expense of the working class, the Diaz administration promoted economic growth by encouraging investment from foreign companies from the United Kingdom, France, Imperial Germany and the United States. The proletariat was often exploited, and found no legal protection or political recourse to redress injustices.
Diaz promoted economic growth by encouraging investment from foreign companies at the expense of what group?
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The answer: working class

The problem: Answer a question about this article:
During the last century, decreases in biodiversity have been increasingly observed. In 2007, German Federal Environment Minister Sigmar Gabriel cited estimates that up to 30% of all species will be extinct by 2050. Of these, about one eighth of known plant species are threatened with extinction. Estimates reach as high as 140,000 species per year (based on Species-area theory). This figure indicates unsustainable ecological practices, because few species emerge each year.[citation needed] Almost all scientists acknowledge that the rate of species loss is greater now than at any time in human history, with extinctions occurring at rates hundreds of times higher than background extinction rates. As of 2012, some studies suggest that 25% of all mammal species could be extinct in 20 years.
2012 studies estimated what percentage of mammals could be extinct in 20 years?
****
The answer:
25%