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_21025437_2 ( episode_no VARCHAR, written_by VARCHAR )

### Question ###
How many episodes were written by Kirstie Falkous & John Regier?

### Accurate SQL ###

SELECT COUNT(episode_no) FROM table_21025437_2 WHERE written_by = "Kirstie Falkous & John Regier"