Cube and Cuboid - General Questions

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 one face painted?

A cube of side 4 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 3 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 3 cm is painted on all its faces and then cut into small cubes of side 1 cm. How many small cubes have exactly three faces painted?

A cube of side 3 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?