Flabébé evolves into Floette starting at level 19.
You can evolve Eelektrik by using a thunderstone.
33
At level 42.
Mewtwo cannot evolve, but it can mega evolve temporarily in Pokemon X, Y, Alpha Sapphire, and Omega Ruby by letting it hold a Mewtwonite X or Mewtwonite Y.
Chimecho is unable to evolve as of Pokemon X and Y. Chimecho does evolve from a Pokemon called Chingling when it's at max happiness and during night time.
No, because Mega Evolution wasn't introduced until Pokemon X and Y.
Machop evolves into Machoke at level 28.
Ducklett evolves at level 35.
Espurr evolves into Meowstic starting at level 25.
Mewtwo is the ultimate Psychic type legendary Pokemon. It was introduced in the first generation and does not evolve into any other Pokemon, although as of the sixth generation it can mega evolve into Mega Mewtwo X or Mega Mewtwo Y.
Does Bergmite evolve
Spritzee evolves into Aromatisse by trading while holding the item Sachet.