Maybe in the daycare center?
You have to pull the pokemon out of the daycare to check the level
yes
2 at a time.
You can't get eevee in the wild in pokemon black. So? Once you finish the first part of the game (after beating Ghetis), go to the pokemon transfer lab and transfer your eevee from older DS pokemon version's to black. NT: Once you transfer a pokemon to black or white, you wont able to do the reverse
Yes, there is a GTS in Pokemon Black and White. It is up in the Pokemon Center and you can access it once you get the first badge as always.
the daycare
the exact place of where it is on black and white. northwest of striaton city
route 3!
In order to breed in Pokemon black/white leave two Pokemon at the daycare centre on route 3. If you go through the first city with a gym go left out of the city and go up, when you get the option to turn don't, keep going up. There should be a building, go into it and your at the daycare centre.
If you mean BREED Pokemon in Pokemon white, you put a girl and boy of the same Pokemon in daycare, and you will later get an egg from the daycare people.
You have to pull the pokemon out of the daycare to check the level
Yes,but only emboar,samurott,or serperior can lay eggs. you need to put a ditto and one of the starter Pokemon from Pokemon black or white in the daycare. and wait about 15 minutes then talk to the person outside of the daycare and he will give you the egg.
Yes
Level 45 (Sometimes if you put the Pokemon in daycare and take it out when it is at the evolution level you will have to level it up a bit more before it evolves because Daycare does not evolve Pokemon)
Pickachu
At the daycare center
yes