TASK DEFINITION: This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.
PROBLEM: 48 of Switzerland's mountains are 4,000 metres (13,000 ft) above sea in altitude or higher. At 4,634 m (15,203 ft), Monte Rosa is the highest, although the Matterhorn (4,478 m or 14,692 ft) is often regarded as the most famous. Both are located within the Pennine Alps in the canton of Valais. The section of the Bernese Alps above the deep glacial Lauterbrunnen valley, containing 72 waterfalls, is well known for the Jungfrau (4,158 m or 13,642 ft) Eiger and Mönch, and the many picturesque valleys in the region. In the southeast the long Engadin Valley, encompassing the St. Moritz area in canton of Graubünden, is also well known; the highest peak in the neighbouring Bernina Alps is Piz Bernina (4,049 m or 13,284 ft).

SOLUTION: What is the highest mountain in Switzerland?

PROBLEM: Paris has been an international capital of high fashion since the 19th century, particularly in the domain of haute couture, clothing hand-made to order for private clients. It is home of some of the largest fashion houses in the world, including Dior and Chanel, and of many well-known fashion designers, including Karl Lagerfeld, Jean-Paul Gaultier, Christophe Josse and Christian Lacroix. Paris Fashion Week, held in January and July in the Carrousel du Louvre and other city locations, is among the top four events of the international fashion calendar, along with the fashion weeks in Milan, London and New York. Paris is also the home of the world's largest cosmetics company, L'Oréal, and three of the five top global makers of luxury fashion accessories; Louis Vuitton, Hermés and Cartier.

SOLUTION: What is clothing made to order for private clients called?

PROBLEM: Subsequently, in October 2001, U.S. forces (with UK and coalition allies) invaded Afghanistan to oust the Taliban regime. On 7 October 2001, the official invasion began with British and U.S. forces conducting airstrike campaigns over enemy targets. Kabul, the capital city of Afghanistan, fell by mid-November. The remaining al-Qaeda and Taliban remnants fell back to the rugged mountains of eastern Afghanistan, mainly Tora Bora. In December, Coalition forces (the U.S. and its allies) fought within that region. It is believed that Osama bin Laden escaped into Pakistan during the battle.

SOLUTION:
When did the US invade Afghanistan?