CREATE TABLE "table1_1566848_8" (
  "date" text,
  "cover_model" text,
  "centerfold_model" text,
  "interview_subject" text,
  "20_questions" text,
  "pictorials" text
);

Question: Who was the on the cover when Bob Vila did the 20 Questions?
SQL: SELECT "cover_model" FROM "table1_1566848_8" WHERE "20_questions"='Bob Vila';

Question: When was the Kymberly Paige the Centerfold?
SQL: SELECT "date" FROM "table1_1566848_8" WHERE "centerfold_model"='Kymberly Paige';