Stories in this EC horror comic are: “Mirror, Mirror On The Wall!” by Jack Davis (Crypt Keeper),
“Oil’s Well That Ends Well!” by George Evans (Vault Keeper),
“Attacks Of Horror!” by Jack Kamen (Crypt Keeper), and
“There Was An Old Woman!” by Graham Ingels (Old Witch).

Though this one is given the number 20, it’s really only the first to run under the name Tales from the Crypt. In the previous issues, the format was pretty much the same: the story is told with the Crypt Keeper providing the intro and outro. The only real difference was that they ran under the name “Crypt of Terror”.