The only thing that can be said that there must be at least 4 faces and at least 6 edges and that the polyhedron must satisfy the Euler criterion which requires that:
Faces + Vertices = Edges + 2.
8 edges and 5 faces
If it is a polyhedron, then four or more faces and four or more corners.
cylinder
It has 6 faces, 12 edges and 8 corners or vertices
The numbers in the question do not satisfy the Euler characteristic so there cannot be such a [convex] polyhedron.
6 faces, 12 edges
The faces in a 3-D shape (polyhedron, for example) are bordered by edges.
8 edges and 5 faces
A polyhedron is any 3D solid (such as a cube) - therefore, it can have any number of faces.
If it is a polyhedron, then four or more faces and four or more corners.
A tetradecachedron is a polyhedron, also known as a 14-sided polyhedron or 14-faced polyhedron. It is a convex solid with 14 faces, 24 edges, and 14 vertices. The term "tetradecachedron" can refer to any 14-faced polyhedron, not necessarily a specific shape.
cylinder
A cube has 6 faces
Actually, there is such thing as a polyhedron. Its a 3D shape and it's faces are all the same shapes. Doesn't matter what shape, actually. ^^^ ok, to the dude who answered before me (above): you're a butt... you didn't answer the freaking question! Its 6
It has 6 faces, 12 edges and 8 corners or vertices
The numbers in the question do not satisfy the Euler characteristic so there cannot be such a [convex] polyhedron.
A polyhedron is a solid figure with many plane faces, usually greater than six. A polyhedron that has 7 faces is called a heptahedron.