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.
One 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 is here: Who owned Cuba after the Eight Years War?
Explanation: 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: Passage: Improved sanitation in the developing world is a global need, but a neglected priority as shown by the data collected by the Joint Monitoring Programme for Water Supply and Sanitation (JMP) of UNICEF and WHO. This program is tasked to monitor progress towards the Millennium Development Goal (MDG) relating to drinking water and sanitation. About one billion people have no sanitation facility whatsoever and continue to defecate in gutters, behind bushes or in open water bodies, with no dignity or privacy - which is called open defecation and which poses significant health risks. India is the country with the highest number of people practicing open defecation: around 600 million people. India has also become a focus country for the foundation's sanitation activities which has become evident since the "Reinvent the Toilet Fair" in Delhi, India in March 2014.
Solution:
What is needed for the WHO?