Input: The Blitz
Communal shelters never housed more than one seventh of Greater London residents, however. Peak use of the Underground as shelter was 177,000 on 27 September 1940, and a November 1940 census of London found that about 4% of residents used the Tube and other large shelters; 9% in public surface shelters; and 27% in private home shelters, implying that the remaining 60% of the city likely stayed at home. The government distributed Anderson shelters until 1941 and that year began distributing the Morrison shelter, which could be used inside homes.:190

What was the largest number to use Underground shelters in September 27, 1940?
Output: 177,000

Input: Article: While the use of iron started to become more widespread around 1200 BC, mainly because of interruptions in the trade routes for tin, the metal is much softer than bronze. However, very small amounts of steel, (an alloy of iron and around 1% carbon), was always a byproduct of the bloomery process. The ability to modify the hardness of steel by heat treatment had been known since 1100 BC, and the rare material was valued for the manufacture of tools and weapons. Because the ancients could not produce temperatures high enough to melt iron fully, the production of steel in decent quantities did not occur until the introduction of blister steel during the Middle Ages. This method introduced carbon by heating wrought iron in charcoal for long periods of time, but the penetration of carbon was not very deep, so the alloy was not homogeneous. In 1740, Benjamin Huntsman began melting blister steel in a crucible to even out the carbon content, creating the first process for the mass production of tool steel. Huntsman's process was used for manufacturing tool steel until the early 1900s.

Now answer this question: Who created the first process for the mass production of tool steel?

Output: Benjamin Huntsman

Article: Persistent infections occur because the body is unable to clear the organism after the initial infection. Persistent infections are characterized by the continual presence of the infectious organism, often as latent infection with occasional recurrent relapses of active infection. There are some viruses that can maintain a persistent infection by infecting different cells of the body. Some viruses once acquired never leave the body. A typical example is the herpes virus, which tends to hide in nerves and become reactivated when specific circumstances arise.

Question: How can some viruses main a persistent infection?
Ans: by infecting different cells of the body

Here is a question about this article: From 1842 onwards, Chopin showed signs of serious illness. After a solo recital in Paris on 21 February 1842, he wrote to Grzymaa: "I have to lie in bed all day long, my mouth and tonsils are aching so much." He was forced by illness to decline a written invitation from Alkan to participate in a repeat performance of the Beethoven Seventh Symphony arrangement at Erard's on 1 March 1843. Late in 1844, Charles Halle visited Chopin and found him "hardly able to move, bent like a half-opened penknife and evidently in great pain", although his spirits returned when he started to play the piano for his visitor. Chopin's health continued to deteriorate, particularly from this time onwards. Modern research suggests that apart from any other illnesses, he may also have suffered from temporal lobe epilepsy.
What is the answer to this question: What specific illness does modern evidence point to Chopin having?
****
So... temporal lobe epilepsy

The problem: Answer a question about this article:
By the time of John Seller's Atlas Maritima of 1670, "India Beyond the Ganges" had become "the East Indies" including China, Korea, southeast Asia and the islands of the Pacific in a map that was every bit as distorted as Ptolemy's, despite the lapse of approximately 1500 years. That "east" in turn was only an English translation of Latin Oriens and Orientalis, "the land of the rising sun," used since Roman times for "east." The world map of Jodocus Hondius of 1590 labels all of Asia from the Caspian to the Pacific as India Orientalis, shortly to appear in translation as the East Indies.
What was only an English translation of Latin Oriens and Orientalis, "the land of the rising sun"?
****
The answer: "east"

The problem: Answer a question about this article:
In Arabic-speaking cultures, two words are commonly used for Christians: Nasrani (), plural Nasara () is generally understood to be derived from Nazareth through the Syriac (Aramaic); Masihi () means followers of the Messiah. The term Nasara rose to prominence in July 2014, after the Fall of Mosul to the terrorist organization Islamic State of Iraq and the Levant. The nun or the first letter of Nasarawas spray-painted on the property of Christians ejected from the city.
What was spray pained on the properties of Christians who left the area?
****
The answer:
the first letter of Nasara