Cube and Cuboid - General Questions

A cube of side 8 cm is painted on all its faces and then cut into small cubes of side 1 cm. How many small cubes have no face painted?

A cube of side 5 cm is painted on all its faces and then cut into small cubes of side 1 cm. How many small cubes have exactly two faces painted?

A cube of side 6 cm is painted on all its faces and then cut into small cubes of side 1 cm. How many small cubes have exactly one face painted?

A cube of side 7 cm is painted on all its faces and then cut into small cubes of side 1 cm. How many small cubes are obtained in all?

A cube of side 7 cm is painted on all its faces and then cut into small cubes of side 1 cm. How many small cubes have exactly two faces painted?