CREATE TABLE table_24027 ("Ep." FLOAT, "Season" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Prod. Code" CLOB)

How many episodes had a production code of 5m13?
SELECT COUNT("Ep.") FROM table_24027 WHERE "Prod. Code" = '5M13'
SELECT COUNT("Ep.") FROM "table_24027" WHERE "Prod. Code" = '5M13'