A cube fits the given description which also has 12 edges
Pyramid
A cube has 8 vertices (corners) and 6 faces.
A cube or a cuboid has 8 vertices, 6 faces and 12 edges.
It is a cuboid that has 8 vertices, 12 edges and 6 faces
6 flat surfaces - known as faces, 12 edges 8 vertices.
a cube
A cube or cuboid have 6 flat surfaces and 8 vertices. (A cuboid means shaped like a cube - an example being a shoe box.)
A Cube..
a cube has 8 vertices 12 edges and 6 faces to of which are bases
8
A cube fits the given description which also has 12 edges
Pyramid
A quadrilateral based pyramid.
A cube has 6 square surfaces, 12 edges and 8 vertices
Any rectangular prism, including a cube, has 8 vertices and 6 faces.
Any quadrilateral-faced hexahedral prismatoids (e.g. parallelopipeds, rectangular prisms, cubes, etc.)