QUES: Q: Who adopted the Doha Declaration?
A: Moreover, under the TRIPS agreement of the World Trade Organization, countries must allow pharmaceutical products to be patented.
Does the answer answer the question?

ANS: yes

QUES: Q: How cheaply could an older LaserDisc player be purchased in the 1990s?
A: In the 1990s, notable players sold for anywhere from US$200 to well over $1,000, while older and less desirable players could be purchased in working condition for as little as $25.
Does the answer answer the question?

ANS: yes

QUES: Q: What Islamic state controlled southern Iberia in the 1170s?
A: In Iberia, the Christian states, which had been confined to the north-western part of the peninsula, began to push back against the Islamic states in the south, a period known as the Reconquista.
Does the answer answer the question?

ANS: no

QUES: Q: Who was the most important Ming general?
A: The chief of these was Wu Sangui, who was given the provinces of Yunnan and Guizhou, while generals Shang Kexi and Geng Jingzhong were given Guangdong and Fujian provinces respectively.
Does the answer answer the question?

ANS:
yes