Question: Which challenge loser has a Challenge Winner of Roseny?
SQL: SELECT "Challenge Loser" FROM "2-16921290-2" WHERE "Challenge Winner" = 'Roseny';

Question: Which episode has a Challenge Winner of Berto?
SQL: SELECT "Episode" FROM "2-16921290-2" WHERE "Challenge Winner" = 'Berto';

Question: Which winner has a Challenge Loser of Alexcy?
SQL: SELECT "Challenge Winner" FROM "2-16921290-2" WHERE "Challenge Loser" = 'Alexcy';

Question: Which episode has a 7 Deadly Sin of Fire?
SQL: SELECT "Episode" FROM "2-16921290-2" WHERE "7 Deadly Sin" = 'Fire';

Question: Which winner has a Challenge Loser of Gisel?
SQL: SELECT "Challenge Winner" FROM "2-16921290-2" WHERE "Challenge Loser" = 'Gisel';