It's not good to lie.
Frasier who is 31 is interviewing for a contest with contest director Roz when she asks him how old he is.
Frasier wants to state his age.
Frasier tells Ros that he just recently turned thirty one years old.
Frasier assumes he'll have a better chance of winning the contest if he's older, so he says he's 40.
Ros then asks Frasier for his ID which shows he is indeed thirty one and tells him he qualifies to be entered in the draw.
Ros then asks Frasier for ID which then clearly shows he's not 40, and she disqualifies him from the contest.