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.
One example: Passage: The French and Indian War (1754–1763) was the North American theater of the worldwide Seven Years' War. The war was fought between the colonies of British America and New France, with both sides supported by military units from their parent countries of Great Britain and France, as well as Native American allies. At the start of the war, the French North American colonies had a population of roughly 60,000 European settlers, compared with 2 million in the British North American colonies. The outnumbered French particularly depended on the Indians. Long in conflict, the metropole nations declared war on each other in 1756, escalating the war from a regional affair into an intercontinental conflict.
Solution is here: When was the French and Indian War?
Explanation: This question is based on the following sentence in the passage- The French and Indian War (1754–1763) was the North American theater of the worldwide Seven Years' War. It is a common convention to write (start year-end year) beside a historical event to understand when the event happened. You can ask questions like this one about dates, years, other numerals, persons, locations, noun phrases, verb phrases, adjectives, clauses etc. which exist in the paragraph.

Now, solve this: On the island of Crete, along with the lyra and the laouto (lute), the mandolin is one of the main instruments used in Cretan Music. It appeared on Crete around the time of the Venetian rule of the island. Different variants of the mandolin, such as the "mantola," were used to accompany the lyra, the violin, and the laouto. Stelios Foustalierakis reported that the mandolin and the mpoulgari were used to accompany the lyra in the beginning of the 20th century in the city of Rethimno. There are also reports that the mandolin was mostly a woman's musical instrument. Nowadays it is played mainly as a solo instrument in personal and family events on the Ionian islands and Crete.
Solution:
What Island is the mandolin a main instrument in Cretan Music?