You go to the deperment store in Celadon city on second floor.
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
you buy them at celedons department store.
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 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!