Yes you can Bulbasaur,Charmander and Squirtle.But you only get them late in the game.I think after the Elite 4 in Prof. Elms Lab.
you can obtain a water type by getting totodile as your'e starter or you can fish or surf in the water
Starter pokemon, or from a trade.
you can't
you must trade with a freind that has a starter pokemon that you dont have.
In the Pokémon games it is not possible to catch a Totodile in the wild. You can get him at the start of Gold and Silver versions.
You get it from Professor Elms Lab.
No, starter Pokemon are exclusives to every game. They can generally not be caught in the wild. You can't trade between Silver and Fire Red because they are not compatible.
The only way to obtain a Turtwig in Heart Gold and Soul Silver is to trade it from Diamond, Pearl, and Platinum. Sadly, you are forcing your friend to trade their starter Pokemon.
To get a starter from him you have to beat red at mt silver.
Pokemon crystal,Pokemon gold, & Pokemon silver..VERONICA
Yes
Those Pokemon are starter Pokemon in silver and gold, but those are color games.