(1) Butter : Butter is non-living, but it is made by milk and the cow gives milk and the cow is living the organism.
(2) Leather : Leather is non-living but it is obtained from the skin of animals and animals are living organisms.
(3) Wool : Wool is obtained from the sheep and sheep is a living organism.
(4) Cocking oil : Cooking oil is obtained from plants.
(5) Apple : Apple is obtained from tree.
(6) Rubber : Rubber is obtained from plants.
So required answer is Butter, Leather, Wool, Cocking oil, Apple, Rubber.