You can't catch a Munchlax in Pokemon Black or White, you can use the PokeTransfer on Route 15(after beating the Elite Four) or you can go to the Villa in Undella town(also after beating the Elite Four) and there is a gouy in an orange shirt with brown hair that wants a Cinccino, if you trade to him you will get a Munchlax level 60, But to get a Cinccino, you need to catch a Minccino and use a Shiny Stone on it, and to get the Shiny stone you need to go to Dragon Spiral Tower and it will be in a pokeball there.
Sources: Officail Pokemon Black and White strategy guide, and I've beaten EVERYTHING there is to the game
You can't, you can only find that on the white version. You can find Tornadous in Black.
Braviary is only in Pokemon White. Pokemon Black gets stupid Mandibuzz -_-
Vullaby is a version specific pokemon, specific to Pokemon Black. You will need to get someone to trade it to you.
You can find munchlax in the curl bay at the very beginning to your right.
in white forest
in honey trees
in your nose
You can't, you can only find that on the white version. You can find Tornadous in Black.
Trade it with people who have Pokemon White version as you cannot find wild Rufflet in Black
Nowhere. you can find the Black city in pokemon black and White forest in pokemon white. YOu can't got to the white forest in pokemon black
You mostly find them from events, but you find Zekrom (White version) or Reshiram (Black version) later in the story. but you can find hidden ones (Kyruem, Tornadus, etc.)
Braviary can only be found in Pokémon White Version on Route 11 and on the Village Bridge. If you want a Braviary in Pokémon Black Version you will have to trade with someone that has obtained it in Pokémon White Version.
You cannot find Vullaby in Pokemon White Version. It is exclusive to Pokemon Black as Rufflet is to Pokemon White.
The Black Stone is on display at Nacrene City's museum.
You can find it on black city or white forest,i caught a carvanah and a sharpedo,they even have gyrodose!
You get it in an egg on route 17 or 18
You can't find thundurus in the wild in black. You need to trade one over from white version or GTS.