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: Jehovah's Witnesses are organized hierarchically, in what the leadership calls a "theocratic organization", reflecting their belief that it is God's "visible organization" on earth. The organization is led by the Governing Body—an all-male group that varies in size, but since early 2014 has comprised seven members,[note 1] all of whom profess to be of the "anointed" class with a hope of heavenly life—based in the Watch Tower Society's Brooklyn headquarters. There is no election for membership; new members are selected by the existing body. Until late 2012, the Governing Body described itself as the representative and "spokesman" for God's "faithful and discreet slave class" (approximately 10,000 self-professed "anointed" Jehovah's Witnesses). At the 2012 Annual Meeting of the Watch Tower Society, the "faithful and discreet slave" was defined as referring to the Governing Body only. The Governing Body directs several committees that are responsible for administrative functions, including publishing, assembly programs and evangelizing activities. It appoints all branch committee members and traveling overseers, after they have been recommended by local branches, with traveling overseers supervising circuits of congregations within their jurisdictions. Traveling overseers appoint local elders and ministerial servants, and while branch offices may appoint regional committees for matters such as Kingdom Hall construction or disaster relief.

SOLUTION: How many Governing Body members were there in late 2012?

PROBLEM: Passage: The war had removed Bermuda's primary trading partners, the American colonies, from the empire, and dealt a harsh blow to Bermuda's merchant shipping trade. This also suffered due to the deforestation of Bermuda, as well as the advent of metal ships and steam propulsion, for which it did not have raw materials. During the course of the following War of 1812, the primary market for Bermuda's salt disappeared as the Americans developed their own sources. Control of the Turks had passed to the Bahamas in 1819.

SOLUTION: What was the primary market for Bermuda following the War of 1812?

PROBLEM: Passage: Yale University is an American private Ivy League research university in New Haven, Connecticut. Founded in 1701 in Saybrook Colony as the Collegiate School, the University is the third-oldest institution of higher education in the United States. The school was renamed Yale College in 1718 in recognition of a gift from Elihu Yale, who was governor of the British East India Company. Established to train Congregationalist ministers in theology and sacred languages, by 1777 the school's curriculum began to incorporate humanities and sciences. In the 19th century the school incorporated graduate and professional instruction, awarding the first Ph.D. in the United States in 1861 and organizing as a university in 1887.

SOLUTION:
When was the Collegiate School of Saybrook Colony closed?