Question: What was the date of the Cross Code debut that had an Int'l Debut in the year 2008?
SQL: SELECT "Date" FROM "2-18860278-15" WHERE "Year" = '2008';

Question: What was the Int'l Debut for a player in the Back position, that also had a Cross Code Debut of RU Australia v Wales?
SQL: SELECT "Int'l Debut" FROM "2-18860278-15" WHERE "Position" = 'Back' AND "Cross Code Debut" = 'RU Australia v Wales';

Question: What year did Coenraad Breytenbach have their Int'l Debut?
SQL: SELECT "Year" FROM "2-18860278-15" WHERE "Player" = 'Coenraad Breytenbach';

Question: What is the Cross Code Debut for a player that had their Int'l Debut of RU Test New Zealand v Australia?
SQL: SELECT "Cross Code Debut" FROM "2-18860278-15" WHERE "Int'l Debut" = 'RU Test New Zealand v Australia';