Write down the number of faces, vertices and edges of the following solids.

Octagonal prism.

Write down the number of faces, vertices and edges of the following solids.

Pentagonal prism.

Write down the number of faces, vertices and edges of the following solids.

Pentagonal pyramid.

Write down the number of faces, vertices and edges of the following solids.

Hexagonal pyramid.

If a polyhedron has $6$ faces and $12$ edges, find the number of vertices.

Can a polyhedron have its faces $3$ triangles.

Can a polyhedron have its faces $4$ triangles.

Can a polyhedron have its faces a square and four triangles.