CREATE TABLE table_name_53 (bronze NUMBER, nation VARCHAR2, total VARCHAR2)

What is the average Bronze, when Nation is 'North Korea', and when Total is greater than 5?
SELECT AVG(bronze) FROM table_name_53 WHERE nation = "north korea" AND total > 5
SELECT AVG("bronze") FROM "table_name_53" WHERE "nation" = "north korea" AND "total" > 5