How many episodes aired on 25 october 2012?
CREATE TABLE table_25721_3 (total_viewers VARCHAR, airdate VARCHAR)
SELECT COUNT(total_viewers) FROM table_25721_3 WHERE airdate = "25 October 2012"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25721_3 (total_viewers VARCHAR, airdate VARCHAR) Question: How many episodes aired on 25 october 2012? [/INST] SELECT COUNT(total_viewers) FROM table_25721_3 WHERE airdate = "25 October 2012" </s>