HOW MANY TIMES WAS LUDACRIS THE INTERVIEW SUBJECT FOR THE 20 QUESTIONS COLUMN?
CREATE TABLE table_1566852_7 (
    interview_subject VARCHAR
)
SELECT COUNT(20 AS _questions) FROM table_1566852_7 WHERE interview_subject = "Ludacris"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: HOW MANY TIMES WAS LUDACRIS THE INTERVIEW SUBJECT FOR THE 20 QUESTIONS COLUMN? ### Input: CREATE TABLE table_1566852_7 (
    interview_subject VARCHAR
) ### Response: SELECT COUNT(20 AS _questions) FROM table_1566852_7 WHERE interview_subject = "Ludacris"