Go upstairs in any Pokemon center hook up a wirless adapter to 2 GBA's or GBA link cables trade with a leafgreen and have leafgreen trade you there starter Pokemon.
you have to trade them from other Pokemon games
You can just breed your starter Pokemon with a ditto to get a egg of your starter Pokemon in Pokemon leafgreen or firered then trade them.
You can not catch a Charmander in Pokemon Firered you must ether choose it as your starter or trade one from Leafgreen
Trade one from ruby or sapphire or emerald.
You can only obtain squirtle as your starter pokemon( your first pokemon) or through trade.
you must obtain it as your starter Pokemon or ask a friend to trade you
You can't catch them, but you can certainly trade them from other games.
no you can not, you can only get ho-oh in Pokemon heart gold or soul silver, or you can get it in global trade.
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.
As far as I know, you can only choose it as your starter, trade it in from another game, or cheat.
You have to have leafgreen or firered trade you entei and raikou.
you cannot find squirtle in fire red unless he is your starter Pokemon or you might trade from leaf-green