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.

Q: Passage: India started the construction of a 40,000-tonne, 260-metre-long (850 ft) Vikrant-class aircraft carrier in 2009. The new carrier will operate MiG-29K and naval HAL Tejas aircraft along with the Indian-made helicopter HAL Dhruv. The ship will be powered by four gas-turbine engines and will have a range of 8,000 nautical miles (15,000 kilometres), carrying 160 officers, 1,400 sailors, and 30 aircraft. The carrier is being constructed by Cochin Shipyard. The ship was launched in August 2013 and is scheduled for commissioning in 2018.

A: Who finished construction of a 40,000-tonne Vikrant-class carrier in 2009?
****
Q: Passage: From 21 April 1944 until her accession, Elizabeth's arms consisted of a lozenge bearing the royal coat of arms of the United Kingdom differenced with a label of three points argent, the centre point bearing a Tudor rose and the first and third a cross of St George. Upon her accession, she inherited the various arms her father held as sovereign. The Queen also possesses royal standards and personal flags for use in the United Kingdom, Canada, Australia, New Zealand, Jamaica, Barbados, and elsewhere.

A: How many points does Elizabeth's arms bear on her argent after her accession?
****
Q: Passage: In the past, people at Eton have occasionally been guilty of antisemitism. For a time, new admissions were called 'Jews' by their fellow Collegers. In 1945, the school introduced a nationality statute conditioning entry on the applicant's father being British by birth. The statute was removed after the intervention of Prime Minister Harold Macmillan in the 1960s after it came to the attention of Oxford's Wykeham Professor of Logic, A. J. Ayer, himself Jewish and an Old Etonian, who "suspected a whiff of anti-semitism".

A:
In what year did A.J. Ayer become a Professor of Logic at Oxford's Wykeham?
****