cylinder
Slide.
both
A dice can roll but cannot slide. Rolling involves rotating around an axis while moving forward, typically on a flat surface. Sliding, on the other hand, involves moving without rotation, which is not possible for a dice due to its shape and lack of flat sides that would allow for smooth sliding.
I think both
A cylinder
A pyramid will not roll and you cannot stack objects on top.
No
A heptagon based prism has 8 vertices and it can roll.
Cube
The square based pyramid does not stack or roll.
cylinder
A cylinder?
no
Slide.
A square, honey. It can slide on its flat surfaces, but it ain't gonna be rolling anywhere with those sharp corners. So, if you're looking for a shape that's all about sliding and not about rolling, go square or go home.
no