you battle with it or put exp. share and battle with a different Pokemon
Just travel with it and battle with it and level it up
Level them up.
level it up to level 33
The Cerulean Cave. Besides Mewtwo, you can find pokemon up to level 67.
Level it up to level 16, and it will evolve into Kadabra.
You level it up to lvl 36.
Murkrow just like any other pokemon will level up when you battle against other pokemon and win.
Togapi evolves with friendship. So you have to make Togepi as happy as possible and then level it up in order for it to evolve. There is no set level.
u need to make chansey really really happy then level it up once then it evoles
Chansey > level up with max happiness > Blissey
you trade it while holding an up-grade.
Simply battle with them and they will level up and become stronger. Or, every now and then you will find carbos, calcium, iron, ect. these can boost certain stats of you pokemon.