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: The British failures in North America, combined with other failures in the European theater, led to the fall from power of Newcastle and his principal military advisor, the Duke of Cumberland. Newcastle and Pitt joined in an uneasy coalition in which Pitt dominated the military planning. He embarked on a plan for the 1758 campaign that was largely developed by Loudoun. He had been replaced by Abercrombie as commander in chief after the failures of 1757. Pitt's plan called for three major offensive actions involving large numbers of regular troops, supported by the provincial militias, aimed at capturing the heartlands of New France. Two of the expeditions were successful, with Fort Duquesne and Louisbourg falling to sizable British forces.

SOLUTION: What led to Newcastle's rise to power as military advisor?

PROBLEM: Passage: Goodman, now disconnected from Marvel, set up a new company called Seaboard Periodicals in 1974, reviving Marvel's old Atlas name for a new Atlas Comics line, but this lasted only a year and a half. In the mid-1970s a decline of the newsstand distribution network affected Marvel. Cult hits such as Howard the Duck fell victim to the distribution problems, with some titles reporting low sales when in fact the first specialty comic book stores resold them at a later date.[citation needed] But by the end of the decade, Marvel's fortunes were reviving, thanks to the rise of direct market distribution—selling through those same comics-specialty stores instead of newsstands.

SOLUTION: What company partnered with Marvel in 1974?

PROBLEM: Passage: In an effort to demonstrate peaceful intentions toward Germany, on 13 April 1941, the Soviets signed a neutrality pact with Axis power Japan. While Stalin had little faith in Japan's commitment to neutrality, he felt that the pact was important for its political symbolism, to reinforce a public affection for Germany. Stalin felt that there was a growing split in German circles about whether Germany should initiate a war with the Soviet Union. Stalin did not know that Hitler had been secretly discussing an invasion of the Soviet Union since summer 1940, and that Hitler had ordered his military in late 1940 to prepare for war in the east regardless of the parties' talks of a potential Soviet entry as a fourth Axis Power.

SOLUTION:
Who wasn't planning an invasion of the Soviet Union?