TASK DEFINITION: This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.
PROBLEM: Passage: While its fellow Canadian broadcasters converted most of their transmitters to digital by the Canadian digital television transition deadline of August 31, 2011, CBC converted only about half of the analogue transmitters in mandatory areas to digital (15 of 28 markets with CBC Television stations, and 14 of 28 markets with Télévision de Radio-Canada stations). Due to financial difficulties reported by the corporation, the corporation published digital transition plans for none of its analogue retransmitters in mandatory markets to be converted to digital by the deadline. Under this plan, communities that receive analogue signals by rebroadcast transmitters in mandatory markets would lose their over-the-air signals as of the deadline. Rebroadcast transmitters account for 23 of the 48 CBC and Radio-Canada transmitters in mandatory markets. Mandatory markets losing both CBC and Radio-Canada over-the-air signals include London, Ontario (metropolitan area population 457,000) and Saskatoon, Saskatchewan (metro area population 257,000). In both of those markets, the corporation's television transmitters are the only ones that were not planned to be converted to digital by the deadline.

SOLUTION: The CBC petitioned to change what original deadline for converting transmission from digital to analog?

PROBLEM: Passage: Burke was a leading sceptic with respect to democracy. While admitting that theoretically, in some cases it might be desirable, he insisted a democratic government in Britain in his day would not only be inept, but also oppressive. He opposed democracy for three basic reasons. First, government required a degree of intelligence and breadth of knowledge of the sort that occurred rarely among the common people. Second, he thought that if they had the vote, common people had dangerous and angry passions that could be aroused easily by demagogues; he feared that the authoritarian impulses that could be empowered by these passions would undermine cherished traditions and established religion, leading to violence and confiscation of property. Third, Burke warned that democracy would create a tyranny over unpopular minorities, who needed the protection of the upper classes.

SOLUTION: What type of government system did Burke favor?

PROBLEM: Passage: Modern font technology provides a means to address the practical issue of needing to depict a unified Han character in terms of a collection of alternative glyph representations, in the form of Unicode variation sequences. For example, the Advanced Typographic tables of OpenType permit one of a number of alternative glyph representations to be selected when performing the character to glyph mapping process. In this case, information can be provided within plain text to designate which alternate character form to select.

SOLUTION:
What has worsened the practical aspects of unification?