The Silver Age Superman

"In these classic adventures from January 27, 1963 until the series conclusion on May 1, 1966, the impish Mr. Mxyzptlk returns from the Fifth Dimension to exasperate Superman; the Man of Steel becomes Super-Cop to outwit a master spy when Metropolis's entire police force is disabled; [he] tries to help a planet of blind people, but loses his own powers in the process; [he] fights it out with his arch enemy Lex Luthor on an alien planet where Luthor is the hero and Superman a villain; [he] competes in the Interplanetary Olympics against a field in which everyone has super-powers; [he] travels back in time with Lois Lane; and [he] is reunited with the mermaid Lori Lemaris"--Dust jacket.