no there is only one but you can battle them whenever you want
The one you battled before Kanto, The Elite Four of SoulSilver and HeartGold are shared between Kanto and Johto even though it is located in Kanto. But once you beat Red the Elite Fours teams are updated so technically those are the elite four.
The Elite Fours Pokemon are all in their 50s. The Champion at the end of the Elite Four has 60s though.
no
In Pokemon League
there are 4 elite fours
they dont have any.
It depends on your starter.
there the same
errr 4, u gtta fight the cythina the champion straight after the elite 4
No, he's at mt. silver
Face Red
beat the whole game