Problem: New York City:

New York became the most populous urbanized area in the world in the early 1920s, overtaking London. The metropolitan area surpassed the 10 million mark in the early 1930s, becoming the first megacity in human history. The difficult years of the Great Depression saw the election of reformer Fiorello La Guardia as mayor and the fall of Tammany Hall after eighty years of political dominance.

What is the term for a city with a population of over 10 million?
---
A: megacity

Problem: Napoleon III responded with a show of force, sending the ship of the line Charlemagne to the Black Sea. This action was a violation of the London Straits Convention.:104:19 Thus, France's show of force presented a real threat, and when combined with aggressive diplomacy and money, induced the Ottoman Sultan Abdulmecid I to accept a new treaty, confirming France and the Roman Catholic Church as the supreme Christian authority with control over the Roman Catholic holy places and possession of the keys to the Church of the Nativity, previously held by the Greek Orthodox Church.:20
Who felt threaten by France's force and ended up signing a new treaty?
---
Answer: Sultan Abdulmecid I

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Saxon and Austrian armies were unprepared, and their forces were scattered. Frederick occupied Dresden with little or no opposition from the Saxons. At the Battle of Lobositz on 1 October 1756, Frederick prevented the isolated Saxon army from being reinforced by an Austrian army under General Browne. The Prussians then occupied Saxony; after the Siege of Pirna, the Saxon army surrendered in October 1756, and was forcibly incorporated into the Prussian army. The attack on neutral Saxony caused outrage across Europe and led to the strengthening of the anti-Prussian coalition. The only significant Austrian success was the partial occupation of Silesia. Far from being easy, Frederick's early successes proved indecisive and very costly for Prussia's smaller army. This led him to remark that he did not fight the same Austrians as he had during the previous war.
What reinforcements were the Saxons expecting?
A: Frederick prevented the isolated Saxon army from being reinforced by an Austrian army under General Browne

Context and question: Regular script typefaces are also commonly used, but not as common as Ming or sans-serif typefaces for body text. Regular script typefaces are often used to teach students Chinese characters, and often aim to match the standard forms of the region where they are meant to be used. Most typefaces in the Song dynasty were regular script typefaces which resembled a particular person's handwriting (e.g. the handwriting of Ouyang Xun, Yan Zhenqing, or Liu Gongquan), while most modern regular script typefaces tend toward anonymity and regularity.
What are often used to teach students Chinese characters?
Answer: Regular script typefaces

Question: In 1966 The Blind Beggar in Whitechapel became infamous as the scene of a murder committed by gangster Ronnie Kray. The Ten Bells is associated with several of the victims of Jack the Ripper. In 1955, Ruth Ellis, the last woman executed in the United Kingdom, shot David Blakely as he emerged from The Magdala in South Hill Park, Hampstead, the bullet holes can still be seen in the walls outside. It is said that Vladimir Lenin and a young Joseph Stalin met in the Crown and Anchor pub (now known as The Crown Tavern) on Clerkenwell Green when the latter was visiting London in 1903.
Is there an answer to this question: What pub is associated with some of Jack the Ripper's victims?

Answer: The Ten Bells

QUES: Most Western European countries changed the start of the year to 1 January before they adopted the Gregorian calendar. For example, Scotland changed the start of the Scottish New Year to 1 January in 1600 (this means that 1599 was a short year). England, Ireland and the British colonies changed the start of the year to 1 January in 1752 (so 1751 was a short year with only 282 days) though in England the start of the tax year remained at 25 March (O.S.), 5 April (N.S.) till 1800, when it moved to 6 April. Later in 1752 in September the Gregorian calendar was introduced throughout Britain and the British colonies (see the section Adoption). These two reforms were implemented by the Calendar (New Style) Act 1750.

What act did Britain use to implement the use of the Gregorian calendar?
What is the answer?
ANS:
Calendar (New Style) Act 1750