A polyhedron is a 3-dimensional solid made of polygonal faces. Spheres do not have any polygonal face, and hence are not polyhedrons. 

Plane shapes have only two dimensions, while a solid object has three dimensions and hence occupy space.

Yes, It consists of both cylinder and cone as is shown in the figure. The cone is at the top of the cylinder.

In the figure, ABC, BCD, CDE and ACE are triangles and ABDE is a rectangle. Hence, it contains both rectangle and triangles. 

Answer: Option C. ->

Right side view of the shown figure is

Answer: Option C. ->

Match-box is in the form of a cuboid. So, the number of edges in a match-box is the same as the number of edges in a cuboid, which is 12. So, there are 12 edges in a match-box.

Answer: Option D. ->

If we arrange the side, top and front views together, the dice should look like

The base of any cone is circular in shape. Hence, the top view of an ice cream cone is circular.

As you can see in the image above, a pyramid is a polyhedron whose base is a polygon and whose lateral faces are triangles with a common vertex.

As is clear from the picture, there are 5 vertices.