you buy them at celedons department store.
poliwhirl evolves into poliwrath with a water stone
eevee and staryu
The Water Stone is in the Celadon Department Store, 4th Floor
poliwhirl, evee and some others
When you give the poliwhirl a water stone
The sun stone is an item similar to the thunder stone, water stone, fire stone and leaf stone it evolves two pokemon: Gloom and Sunkern.
there is no light stone.
no
You go to the deperment store in Celadon city on second floor.
You must use a water stone to evolve it
Poliwhirl → Poliwrath, Shellder → Cloyster, Staryu → Starmie and Eevee → Vaporeon
Yes in fact you can get dozens if you trade with firered or leafgreen because they can buy water stones all they need to do is trade you a Pokemon holding the water stone and when you get it just take the water stone from it!