CREATE TABLE table_26825 ("Date" TEXT, "Cover model" TEXT, "Centerfold model" TEXT, "Interview subject" TEXT, "20 Questions" TEXT, "Pictorials" TEXT)

Who was the centerfold model when Krysten Ritter played 20 questions?
SELECT "Centerfold model" FROM table_26825 WHERE "20 Questions" = 'Krysten Ritter'
SELECT "Centerfold model" FROM "table_26825" WHERE "20 Questions" = 'Krysten Ritter'