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_20254 ( "Date" text, "Cover model" text, "Centerfold model" text, "Interview subject" text, "20 Questions" text, "Pictorials" text )

### Question ###
HOW MANY TIMES WAS LUDACRIS THE INTERVIEW SUBJECT FOR THE 20 QUESTIONS COLUMN?

### Accurate SQL ###

SELECT COUNT("20 Questions") FROM table_20254 WHERE "Interview subject" = 'Ludacris'