Some good trivia questions for senior citizens include asking who the president was from 1953 to 1961 and which disease Jonas Salk created a vaccine for in 1952. The answers to those questions are Dwight Eisenhower and polio, respectively.
Another question asks which rock and roll singer appeared on Ed Sullivan in 1956 and was only allowed to be shown from the waist up. The answer is Elvis Presley.
More questions to ask are what artist from the 1960s was famous for paintings of everyday items such as soup cans, and who the first athlete to earn a perfect score in Olympic gymnastics was. The answers to those questions are Andy Warhol and Nadia Comaneci, respectively.