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: Federalism has a long tradition in German history. The Holy Roman Empire comprised many petty states numbering more than 300 around 1796. The number of territories was greatly reduced during the Napoleonic Wars (1796–1814). After the Congress of Vienna (1815), 39 states formed the German Confederation. The Confederation was dissolved after the Austro-Prussian War and replaced by a North German Federation under Prussian hegemony; this war left Prussia dominant in Germany, and German nationalism would compel the remaining independent states to ally with Prussia in the Franco-Prussian War of 1870–71, and then to accede to the crowning of King Wilhelm of Prussia as German Emperor. The new German Empire included 25 states (three of them, Hanseatic cities) and the imperial territory of Alsace-Lorraine. The empire was dominated by Prussia, which controlled 65% of the territory and 62% of the population. After the territorial losses of the Treaty of Versailles, the remaining states continued as republics of a new German federation. These states were gradually de facto abolished and reduced to provinces under the Nazi regime via the Gleichschaltung process, as the states administratively were largely superseded by the Nazi Gau system.
Solution:
The Holy Roman Empire comprised of how many petty states?