CREATE TABLE table_30181 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production code" FLOAT)

Who wrote the episode titled 'Red's Birthday'?
SELECT "Written by" FROM table_30181 WHERE "Title" = 'Red''s Birthday'
SELECT "Written by" FROM "table_30181" WHERE "Title" = 'Red\'s Birthday'