Sceptile doesn't evolve. It's already the final stage of evolution.
It is not found in the wild, you need to either trade from Ruby/Sapphire/or an other emerald, or choose Treecko as your starter pokemon, and evolve it twice, level 16 for a grovyle and level 36 for the sceptile.
Weezing does not evolve in Pokemon Ruby.
it doesn't evolve in Pokemon ruby.
Treeko evolves into Grovyle at level 16, then Grovyle evolves into Sceptile at level 36.
If I was able to name every level that Pokemon in Pokemon ruby evolve at, I would be 20. I'm sorry that I couldn't tell you.
Nosepass doesn't evolve in Ruby, sorry.
Corpish will evolve at level 30
It will evolve at level 48
Spinda does not evolve.
Altaria does not evolve.
it can't evolve
It doesn't evolve.