If asked such question my answer will be YES too. ask ur friend may be there are other questions that gose with it .No body on this earth will ever prove to me that in one way or the other he or she has never told lies .one will not becos u need a job and u tell lies u will even impress the judges if u tell them the truth.so my dear i dont think yes to d question was the reason why he failed the interview.
Cheers.