no it does not evolve with a fire stone.
poliwag evolves at leve 25 into poliwhirl..veronica
Poliwag evolves into Poliwhirl at level 25 in Pokemon Liquid Crystal.
you can catch a poliwag and evolve it into poliwhirl, and then use a water stone to evolve the poliwhirl into a poliwrath
Poliwag evolves into Pilowhirl which then evolves into Poliwrath
32
1o
24
you cannot.
Sandshrew evolves at l.22 in pokemon crystal
You have to use a leaf stone to evolve weepinbell into victreebel.
Clefairy doesn't evolve by level, you'll have to use a moonstone on her.
no Pokemon returns to basic never it evolves and that's that