QUES: Q: What good fortune from Russia assisted Frederick the Great?
A: Frederick the Great's personal reputation was enormously enhanced, as his debt to fortune (Russia's volte-face after Elizabeth's death) and to the British subsidy were soon forgotten while the memory of his energy and his military genius was strenuously kept alive.
Does the answer answer the question?

ANS: yes

QUES: Q: What is the only way that Y-DNA and mtDNA change?
A: Autosomal "atDNA" markers are also used, but differ from mtDNA or Y-DNA in that they overlap significantly.
Does the answer answer the question?

ANS: no

QUES: Q: Where did NBC correspondant Kelly O'Donnell attend school?
A: The Medill School of Journalism has produced notable journalists and political activists including 38 Pulitzer Prize laureates.
Does the answer answer the question?

ANS: yes

QUES: Q: What college of Yale is located at Elm and York Streets in New Haven?
A: The carts cluster at three main points: by Yale New Haven Hospital in the center of the Hospital Green (Cedar and York streets), by Yale's Trumbull College (Elm and York streets), and on the intersection of Prospect and Sachem streets by the Yale School of Management.
Does the answer answer the question?

ANS:
yes