Teach FLoatzel HM03 Surf
Yes.
yes
Teach your Floatzel Ice Punch to use against Cynthia's Garchomp and Surf to use against her Lucario and Gastrodon.
If you have a Floatzel, teach it 2 of the Five: Ice Fang Water Gun Swift Brine Aqua Jet The best move I would say: Surf and Waterfall
You can use Pokemon like: Buizel, floatzel, gastrodon, and possibly finneon and lumineon
You can't. But I know how to go down it! When your near the Ranger Union, and you have a Floatzel or Empoleon, go to the half built bridge and you'll have a "?" above your head. Click on Floatzel or Empoleon with your stylus or finger and you'll be able to surf on Floatzel or Empoleon and you'll go down the waterfall!
floatzel doesn't evolve, but buziel evolves into floatzel at level 26
Floatzel does not evolve. Buizel evolves at level 26 into a floatzel
Buizel evolves at level 26 into Floatzel,floatzel himself does not evolve.
It is a combination of "float" and "weasel".
Floatzel is a Water type pokemon.
Floatzel is the final evolution of Buizel. It does not evolve into anything.