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 Indus and Brahmaputra rivers originate from a lake (Tib: Tso Mapham) in Western Tibet, near Mount Kailash. The mountain is a holy pilgrimage site for both Hindus and Tibetans. The Hindus consider the mountain to be the abode of Lord Shiva. The Tibetan name for Mt. Kailash is Khang Rinpoche. Tibet has numerous high-altitude lakes referred to in Tibetan as tso or co. These include Qinghai Lake, Lake Manasarovar, Namtso, Pangong Tso, Yamdrok Lake, Siling Co, Lhamo La-tso, Lumajangdong Co, Lake Puma Yumco, Lake Paiku, Lake Rakshastal, Dagze Co and Dong Co. The Qinghai Lake (Koko Nor) is the largest lake in the People's Republic of China.

SOLUTION: What mountain is a holy site for Hindus and Indus?

PROBLEM: Passage: Static analysis techniques for software verification can be applied also in the scenario of query languages. In particular, the *Abstract interpretation framework has been extended to the field of query languages for relational databases as a way to support sound approximation techniques. The semantics of query languages can be tuned according to suitable abstractions of the concrete domain of data. The abstraction of relational database system has many interesting applications, in particular, for security purposes, such as fine grained access control, watermarking, etc.

SOLUTION: Why is static analysis impossible with query languages?

PROBLEM: Passage: Once at Golgotha, Jesus was offered wine mixed with gall to drink. Matthew's and Mark's Gospels record that he refused this. He was then crucified and hung between two convicted thieves. According to some translations from the original Greek, the thieves may have been bandits or Jewish rebels. According to Mark's Gospel, he endured the torment of crucifixion for some six hours from the third hour, at approximately 9 am, until his death at the ninth hour, corresponding to about 3 pm. The soldiers affixed a sign above his head stating "Jesus of Nazareth, King of the Jews" in three languages, divided his garments and cast lots for his seamless robe. The Roman soldiers did not break Jesus' legs, as they did to the other two men crucified (breaking the legs hastened the crucifixion process), as Jesus was dead already. Each gospel has its own account of Jesus' last words, seven statements altogether. In the Synoptic Gospels, various supernatural events accompany the crucifixion, including darkness, an earthquake, and (in Matthew) the resurrection of saints. Following Jesus' death, his body was removed from the cross by Joseph of Arimathea and buried in a rock-hewn tomb, with Nicodemus assisting.

SOLUTION:
What was offered to the two thieves to drink?