No, there are many different types of pyramids. To give a real-life comparison, the Egyptian pyramids are square pyramids, and have 5 faces. Triangular pyramids have 4 faces. (Count the base as one face) A pentagonal pyramid would have 6 faces. (Five on each side, plus the base) A hexagonal pyramid would have 7 faces, etc. (One for each side base + the base's face)
there are 2 faces on a hemisphere the round side and the flat side
The Moon has no faces. It has one side facing Earth called the near side, and one side that is always facing away called the far side.
octagon
A soda can has 3 faces. The top, bottom, and the round side of the can are the 3 faces.
The inner curved side faces the spine (the bit where all the tubes come out).
The apical side of epithelial cells faces the lumen. This side is also known as the free surface, as it is exposed to the external environment or to a body cavity.
A cylinder has 2 circular faces.
There are two faces, the bottom and the side. One edge, where the bottom meets the side. And one vertex, at the top.
there are 2 faces on a hemisphere the round side and the flat side
The triangular prism has the two triangular bases and rectangular side faces.
Since a face of a 3d figure is the same as a side, you have two faces sharing a face! The result is lots of coincident faces!