Question:  "I Saw Her Again" was co-written by what Canadian singer born in 1940?
Facts:
I Saw Her Again is co-written by Denny Doherty
Dennis Gerrard Stephen Doherty is born in 1940
Dennis Gerrard Stephen Doherty is a Canadian singer
I Saw Her Again is recorded by group the Mamas & the Papas
Answer: Dennis Gerrard Stephen Doherty