CREATE TABLE table_24464 ("Category" TEXT, "Sub-category" TEXT, "Cab size" TEXT, "Drive wheels" TEXT, "Capacity  ( litres ) " TEXT)

Name the category for cab size crew and super tanker
SELECT "Category" FROM table_24464 WHERE "Cab size" = 'Crew' AND "Sub-category" = 'Super tanker'
SELECT "Category" FROM "table_24464" WHERE "Cab size" = 'Crew' AND "Sub-category" = 'Super tanker'