CREATE TABLE table_30246 ("No." FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" FLOAT, "U.S. viewers  ( million ) " CLOB)

Who wrote the episode that had 6.05 million U.s. viewers?
SELECT "Written by" FROM table_30246 WHERE "U.S. viewers (million)" = '6.05'
SELECT "Written by" FROM "table_30246" WHERE "U.S. viewers (million)" = '6.05'