QUES: Q: What year did Germany decide to try DST?
A: Starting on 30 April 1916, Germany and its World War I ally Austria-Hungary were the first to use DST (German: Sommerzeit) as a way to conserve coal during wartime.
Does the answer answer the question?

ANS: yes

QUES: Q: What interpretation became common in Unix systmes?
A: Operating systems from Digital Equipment Corporation, for example, interpreted DEL as an input character as meaning "remove previously-typed input character", and this interpretation also became common in Unix systems.
Does the answer answer the question?

ANS: yes

QUES: Q: How often does Elizabeth give interviews?
A: A personal note about her faith often features in her annual Christmas message broadcast to the Commonwealth.
Does the answer answer the question?

ANS: no

QUES: Q: How many distinct seasons does Zhejiang have?
A: Zhejiang has a humid subtropical climate with four distinct seasons.
Does the answer answer the question?

ANS:
yes