Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_45 ( episode_number INTEGER, event_4 VARCHAR, event_3 VARCHAR )

### Question ###
What episode had sumo ball for event 3 and the wall for event 4?

### Accurate SQL ###

SELECT AVG(episode_number) FROM table_name_45 WHERE event_4 = "the wall" AND event_3 = "sumo ball"