Parallelograms have sides. Opposite sides are congruent.
The lateral faces will be parallelograms, and the opposite faces will be congruent. In a right prism, the lateral faces will be rectangles.
A hexahedron, or cube.
a rectangular prism
Prism, which a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms.
That all depends on the type of faces a prism has. Then, you should have at most 3 pairs of congruent faces on the opposite sides of the prism.
A Cuba has 6 congruent faces
A cuboid. Or a hexagonal prism. In fact any prism whose base has an even number of sides will have three pairs of opposite parallel congruent faces. All but the cuboid will also have other faces but the question does not exclude them.
An object with 2 congruent pentagons at opposite ends connected with 5 rectangles is a pentagonal prism.
The six sides of the prism are mutually congruent if the hexagon is a regular one. One base is also congruent to the opposite base. ----------------- (The illustration is an octagonal prism.)
Non-congruent or incongruent is the opposite of congruent.
Any regular polygon has two congruent faces. Many polygons have two or more congruent faces.