If you were born on Thursday, April 04, 1940 then Can't Buy Me Love by The Beatles was the number one on your 24th birthday, and went to number one on March 29, 1964. Check the price of Can't Buy Me Love by The Beatles on Amazon.com
The biggest selling book of 1964 (the year you turned 24) was The Spy Who Came in From the Cold by John Le Carre.