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_11748792_2 (wednesday VARCHAR, series VARCHAR)

### Question ###
Who is the Wednesday presenter of the show Big Brother 13?

### Accurate SQL ###

SELECT wednesday FROM table_11748792_2 WHERE series = "Big Brother 13"