Who played 20 questions during the issue in which Pamela Horton is on the cover?
CREATE TABLE "2012" (
  "date" text,
  "cover_model" text,
  "centerfold_model" text,
  "interview_subject" text,
  "20_questions" text,
  "pictorials" text
);
SELECT "20_questions" FROM "2012" WHERE "cover_model"='Pamela Horton';