You can't find it in the wild or a special place. You'll need to trade for it or transfer it from the older Pokemon DS games.
there isn't a wild suicune to catch in white or black
yes, if you have entei raikou or suicune.
Suicune is not a possible starter Pokemon in emerald you must get a suicune from Pokemon firered or leafgreen.
Through the Transfer Machine, which can be unlocked in-game.
they were in a event but the event has ended now.
The Shiny Suicune was a game stop event held before Pokemon black and whiter where releases. You had to get either suicune riakou or entei at the event of your Pokemon Pearl/diamond/platinum/soul silver/ or heart gold version, and then transfer them to your Pokemon black/white version.
Zoroark - it is a Dark type pokemon and is known as "the master of illusions."
You can't. You'd have to transfer it from a Pokemon Black/White/Black 2/White 2 game or trade for one on the GTS.
After Suicune there is Regirock. You can find it at Sekra Range.
It won't work. Zoroark will only appear if you have the Shiny Suicune (or any of the Legendary dogs). But you can trade Suicune up to Black and White by using the Relocator machine in Castelia City (Password: Everyone Happy Simple Connection)
Suicune is a Water Type Pokemon.
Suicune is on Route 25.