QUES: Q: When did Fidel Castro overthrow the Cuban government?
A: Several decades later in 1959, the corrupt Cuban government of U.S.-backed Fulgencio Batista was overthrown by Fidel Castro.
Does the answer answer the question?

ANS: yes

QUES: Q: How long did the Great Irish Famine cause a population decline in Ireland?
A: However, since the Great Irish Famine, the population of Ireland has fallen to less than one tenth of the population of the British Isles.
Does the answer answer the question?

ANS: no

QUES: Q: What media source has reported this happening?
A: The AP reported that "The state-controlled media has largely ignored the issue, apparently under the propaganda bureau's instructions.
Does the answer answer the question?

ANS: yes

QUES: Q: Which society organized The Great Exhibition?
A: Albert insisted the Great Exhibition surplus should be used as a home for culture and education for everyone.
Does the answer answer the question?

ANS:
no