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: In Ireland, private schools (Irish: scoil phríobháideach) are unusual because a certain number of teacher's salaries are paid by the State. If the school wishes to employ extra teachers they are paid for with school fees, which tend to be relatively low in Ireland compared to the rest of the world. There is, however, a limited element of state assessment of private schools, because of the requirement that the state ensure that children receive a certain minimum education; Irish private schools must still work towards the Junior Certificate and the Leaving Certificate, for example. Many private schools in Ireland also double as boarding schools. The average fee is around €5,000 annually for most schools, but some of these schools also provide boarding and the fees may then rise up to €25,000 per year. The fee-paying schools are usually run by a religious order, i.e., the Society of Jesus or Congregation of Christian Brothers, etc.

SOLUTION: What is the Irish term for school fees?

PROBLEM: Passage: Indic scripts such as Tamil and Devanagari are each allocated only 128 code points, matching the ISCII standard. The correct rendering of Unicode Indic text requires transforming the stored logical order characters into visual order and the forming of ligatures (aka conjuncts) out of components. Some local scholars argued in favor of assignments of Unicode code points to these ligatures, going against the practice for other writing systems, though Unicode contains some Arabic and other ligatures for backward compatibility purposes only. Encoding of any new ligatures in Unicode will not happen, in part because the set of ligatures is font-dependent, and Unicode is an encoding independent of font variations. The same kind of issue arose for Tibetan script[citation needed] (the Chinese National Standard organization failed to achieve a similar change).

SOLUTION: How many points is Arabic given?

PROBLEM: Passage: Between 2005 and 2011, Greece has had the highest percentage increase in industrial output compared to 2005 levels out of all European Union members, with an increase of 6%. Eurostat statistics show that the industrial sector was hit by the Greek financial crisis throughout 2009 and 2010, with domestic output decreasing by 5.8% and industrial production in general by 13.4%. Currently, Greece is ranked third in the European Union in the production of marble (over 920,000 tons), after Italy and Spain.

SOLUTION:
What did Greece have the lowest percentage increase in between 2005 and 2011?