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: Roman Catholics believe in the Immaculate Conception of Mary, as proclaimed Ex Cathedra by Pope Pius IX in 1854, namely that she was filled with grace from the very moment of her conception in her mother's womb and preserved from the stain of original sin. The Latin Rite of the Roman Catholic Church has a liturgical feast by that name, kept on December 8. Orthodox Christians reject the Immaculate Conception dogma principally because their understanding of ancestral sin (the Greek term corresponding to the Latin "original sin") differs from the Augustinian interpretation and that of the Roman Catholic Church.

SOLUTION: On what day did Mary attend The Latin Rite of the Roman Catholic Church liturgical feast?

PROBLEM: Passage: At the time, the Umayyad taxation and administrative practice were perceived as unjust by some Muslims. The Christian and Jewish population had still autonomy; their judicial matters were dealt with in accordance with their own laws and by their own religious heads or their appointees, although they did pay a poll tax for policing to the central state. Muhammad had stated explicitly during his lifetime that abrahamic religious groups (still a majority in times of the Umayyad Caliphate), should be allowed to practice their own religion, provided that they paid the jizya taxation. The welfare state of both the Muslim and the non-Muslim poor started by Umar ibn al Khattab had also continued. Muawiya's wife Maysum (Yazid's mother) was also a Christian. The relations between the Muslims and the Christians in the state were stable in this time. The Umayyads were involved in frequent battles with the Christian Byzantines without being concerned with protecting themselves in Syria, which had remained largely Christian like many other parts of the empire. Prominent positions were held by Christians, some of whom belonged to families that had served in Byzantine governments. The employment of Christians was part of a broader policy of religious assimilation that was necessitated by the presence of large Christian populations in the conquered provinces, as in Syria. This policy also boosted Muawiya's popularity and solidified Syria as his power base.

SOLUTION: What populations did not have autonomy?

PROBLEM: Passage: Florida is served by Amtrak, operating numerous lines throughout, connecting the state's largest cities to points north in the United States and Canada. The busiest Amtrak train stations in Florida in 2011 were: Sanford (259,944), Orlando (179,142), Tampa Union Station (140,785), Miami (94,556), and Jacksonville (74,733). Sanford, in Greater Orlando, is the southern terminus of the Auto Train, which originates at Lorton, Virginia, south of Washington, D.C.. Until 2005, Orlando was also the eastern terminus of the Sunset Limited, which travels across the southern United States via New Orleans, Houston, and San Antonio to its western terminus of Los Angeles. Florida is served by two additional Amtrak trains (the Silver Star and the Silver Meteor), which operate between New York City and Miami. Miami Central Station, the city's rapid transit, commuter rail, intercity rail, and bus hub, is under construction.

SOLUTION:
What train line connects florida to the south?