It has four because you only count the ones on the base man :P

26$:$/8:!:$/[email protected]&1910/$3'ql

5 faces and 4 edges and 5 vertices

10 and 9 I think

8 Edges and 5 vertices

It would have eight edges and one vertex. Four edges on the base and four rising edges coming to meet at one Vertex.

5 faces

8 edges

4 vertices

8 edges

4 vertices