Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Passage: In 1763, Spain traded Florida to the Kingdom of Great Britain for control of Havana, Cuba, which had been captured by the British during the Seven Years' War. It was part of a large expansion of British territory following the country's victory in the Seven Years' War. Almost the entire Spanish population left, taking along most of the remaining indigenous population to Cuba. The British soon constructed the King's Road connecting St. Augustine to Georgia. The road crossed the St. Johns River at a narrow point, which the Seminole called Wacca Pilatka and the British named "Cow Ford", both names ostensibly reflecting the fact that cattle were brought across the river there.
Solution: Who owned Cuba after the Eight Years War?
Reason: This question appears to be relevant to the passage as both involves words such as 'Cuba' and 'War' which also exist in the passage. The passage mentions that "after the war, almost the entire Spanish population left, taking along most of the remaining indigenous population to Cuba". This information is not sufficient to conclude that which country owned cuba.

Now, solve this instance: Passage: England first appeared at the 1950 FIFA World Cup and have appeared in 14 FIFA World Cups, they are tied for sixth-best in terms of number of wins alongside France and Spain. The national team is one of eight national teams to have won at least one FIFA World Cup title. The England team won their first and only World Cup title in 1966. The tournament was played on home soil and England defeated Germany 42 in the final. In 1990, England finished in fourth place, losing 21 to host nation Italy in the third place play-off after losing on penalties to champions Germany in the semi-final. The team has also reached the quarter-final on two recent occasions in 2002 and 2006. Previously, they reached this stage in 1954, 1962, 1970 and 1986.
Student:
How many FIFA World Cups has France been in?