QUES: Q: When did the Nanjing Yangtze River Bridge first open for traffic?
A: In the 1960s, the first Nanjing Yangtze River Bridge was completed, and served as the only bridge crossing over the Lower Yangtze in eastern China at that time.
Does the answer answer the question?

ANS: no

QUES: Q: When did the Smallpox epidemic take place?
A: Captain Juan de Santiago started a campaign to pacify the island, which was continued by the successive commanders of the Spanish forces.:6874
Does the answer answer the question?

ANS: no

QUES: Q: Who requested the aid of the Canadians?
A: They have been deployed in Afghanistan until 2011, under the NATO-led United Nations International Security Assistance Force (ISAF), at the request of the Government of Afghanistan.
Does the answer answer the question?

ANS: yes

QUES: Q: What was the last day the Julian calendar was used?
A: In these territories, as well as in the PolishLithuanian Commonwealth (ruled by Anna Jagiellon) and in the Papal States, the new calendar was implemented on the date specified by the bull, with Julian Thursday, 4 October 1582, being followed by Gregorian Friday, 15 October 1582.
Does the answer answer the question?

ANS:
yes