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: Tajikistan means the "Land of the Tajiks". The suffix "-stan" (Persian: ـستان‎‎ -stān) is Persian for "place of" or "country" and Tajik is, most likely, the name of a pre-Islamic (before the seventh century A.D.) tribe. According to the Library of Congress's 1997 Country Study of Tajikistan, it is difficult to definitively state the origins of the word "Tajik" because the term is "embroiled in twentieth-century political disputes about whether Turkic or Iranian peoples were the original inhabitants of Central Asia."

SOLUTION: Which country's name means "Land of the Talks"?

PROBLEM: Passage: Noteworthy Irish mandolinists include Andy Irvine (who, like Johnny Moynihan, almost always tunes the top E down to D, to achieve an open tuning of GDAD), Paul Brady, Mick Moloney, Paul Kelly and Claudine Langille. John Sheahan and the late Barney McKenna, respectively fiddle player and tenor banjo player with The Dubliners, are also accomplished Irish mandolin players. The instruments used are either flat-backed, oval hole examples as described above (made by UK luthier Roger Bucknall of Fylde Guitars), or carved-top, oval hole instruments with arched back (made by Stefan Sobell in Northumberland). The Irish guitarist Rory Gallagher often played the mandolin on stage, and he most famously used it in the song "Going To My Hometown."

SOLUTION:  Who are some of the famous Italian Mandolinists?

PROBLEM: Passage: In 1870, republican sentiment in Britain, fed by the Queen's seclusion, was boosted after the establishment of the Third French Republic. A republican rally in Trafalgar Square demanded Victoria's removal, and Radical MPs spoke against her. In August and September 1871, she was seriously ill with an abscess in her arm, which Joseph Lister successfully lanced and treated with his new antiseptic carbolic acid spray. In late November 1871, at the height of the republican movement, the Prince of Wales contracted typhoid fever, the disease that was believed to have killed his father, and Victoria was fearful her son would die. As the tenth anniversary of her husband's death approached, her son's condition grew no better, and Victoria's distress continued. To general rejoicing, he pulled through. Mother and son attended a public parade through London and a grand service of thanksgiving in St Paul's Cathedral on 27 February 1872, and republican feeling subsided.

SOLUTION:
What year was the Third French Republic demolished?