John F. Kennedy, commonly referred to by his initials JFK, was one of the greatest president that the US has ever had. John F. Kennedy remains one of the most famous and admired president of US people and people of US rank him among the best of the nation’s president. This quiz is all about John F. Kennedy.Do you know that president John F. Kennedy used to donate his entire salary to charity. Take this simple yet informative quiz to check how much you know about JFK...