all Burmys evole at level 20
Burmy (no matter which cloak) will evolve into Mothim at level 25. The Burmy has to be male, or it will evolve into a Wormadam.
If you have a male Burmy it evolves into mothim at Lv.20. If it is female then depending on the cloak of your burmy it evolves into a wormadam with that cloak and cannot change cloak. Female also evolve at lv.20
Emolga does not evolve. I played Pokemon White also and it does not evolve. Some Pokemon do but this one does not evolve.
Be specific. What pokemon? ---------------------------------------- Most of them evolve at level 16 than level 36 :)
If you want a Wormadam, level a female Burmy up to lvl 20 and evolve it. It's cloak depend on where you evolve it. If you prefer a Mothim, level up a male Burmy to level 20.
You can't make Burmy evolve with a stone. It evolves at level 20. If it's male, it evolves into Mothim. Female, it evolves into Wormadan. (Quick ways to make Burmy evolve: Cheats or, what I do, give Burmy the item Experience Share and go to a place with high level Pokemon, like Victory Road, and train it like that.)
It evolves in Pokemon Diamond and Pokemon Pearl at Level 40.
Pikachu do not evolve by level. They evolve when a thunderstone is used on them.
Pokemon evolve at different levels so you never really know what level it is
Sandy Cloak Burmy can be found in level 20 in Pokemon. This Pokemon has the shed skin ability that allows it to heal itself.
Many Pokemon evolve at certain levels. Some don't even evolve with level!
At level 16. if you don't know how to evolve Pokemon then go to your Pokemon box with your level 16 Charmander and press evolve.