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_25391981_3 ( number_of_dances VARCHAR, average VARCHAR )

### Question ###
What is the number of dances for the team that averages 20.6?

### Accurate SQL ###

SELECT number_of_dances FROM table_25391981_3 WHERE average = "20.6"