While it is said that everyone has someone that looks like them there is no proof that there are seven identical face matches. There may be several people who look similar to each other but not identical.
Regular polyhedra have identical faces.
The shape you are describing is a prism, specifically a rectangular prism or a parallelepiped. In a prism, the two opposite faces are congruent and identical, while the other faces are parallelograms. For example, in a rectangular prism, the two identical faces are rectangles, and the lateral faces are also rectangles (which are a specific type of parallelogram).
How about a dice or a cube
Yes.
A cube.
There is no shape which has identical parallelogram faces.
a square. duuh. * * * * * duuh is correct! A square has 4 identical sides or 4 identical angles but not 4 identical faces! A shape with four identical plane faces is a regular tetrahedron or a triangle based pyramid.
4 of the faces will be identical rectangles and 2 will be slightly different identical rectangles.
cube
Regular polyhedra have identical faces.
The shape you are describing is a prism, specifically a rectangular prism or a parallelepiped. In a prism, the two opposite faces are congruent and identical, while the other faces are parallelograms. For example, in a rectangular prism, the two identical faces are rectangles, and the lateral faces are also rectangles (which are a specific type of parallelogram).
prisms ?
right parallelepiped
It has 20 identical equilateral triangular faces.
A polygon. A prism has two identical bases or end-faces and these can be polygons with any number of sides.
A right triangular prism has two identical faces. Two faces may or may not be identical in an oblique prism, in which the lateral edges are not perpendicular to the bases.
Yes.