At level 100 its crazy
Vulpix learns Flamethrower at level 35.
In what Pokemon game? In the Pokemon Diamond and Pearl games, Vulpix learns Fire Blast on level 47. Of course, you could always teach it Fire Blast from TM38 on any level. Actually, Pokemon Diamond and Pearl are the only games which allow Vulpix to learn Fire Blast as a part of levelling up. The Pokemon games of the three previous generations only allow Vulpix to learn Ember, Flamethrower and Fire Spin by levelling up.
If you have a Vulpix in ditto, or a female Vulpix with another Pokemon that is the opposite sex. (I've breed numerous Pokemon such as Arcanine with Dugtrio, Eevee with Any of its evolutions, Mightyena, Skitty, and more including Skitty with Wailord). So in my opinion it's a god idea to breed your Pokemon because if you breed a variety of Pokemon that are compatible with another you end up with Pokemon that know/can learn moves that they normally wouldn't be able to learn.
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Charmander, Cyndiqual can learn smokescreen
no, Pokemon of the IQ group c cannot learn pp saver
yes all you need is the TM and a Pokemon that can learn it.
no it doesent so you should better evolve vulpix at level 26 it actually learns flamethrower at level 29
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Vulpix learns Heat Wave at level 44. It is a powerful Fire-type move that hits all adjacent Pokemon in battle.
Piplup will learn peck in Pokemon in level 15 of Mystery Dungeon Explorers of Darkness. Peck is when the foe is jabbed with a sharply pointed horn or beak.
There are quite a few that can use a fire stone. The most obvious ones include Growlithe, Eevee, and Vulpix. Once you use it on those Pokemon, you cannot change them back. They will also learn a different set of moves.