CREATE TABLE table_16881 ("No. in series" CLOB, "No. in season" CLOB, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Featured character ( s ) " CLOB, "Original air date" CLOB, "U.S. viewers  ( million ) " CLOB)

List the episode whose number in the series is 111.
SELECT "No. in season" FROM table_16881 WHERE "No. in series" = '111'
SELECT "No. in season" FROM "table_16881" WHERE "No. in series" = '111'