yes, just go to serebii.net, attackdex and then find hypnosis
Haunter should know Hypnosis at the point of catching
There is no hypnosis TM
Hypnosis is not a TM
hypnosis, grasswistle i don't know any more
There is no TM for Hypnosis.
I think Gardevoir is a good Pokemon who learns Hypnosis at level 51
Hypnosis will not affect Pokémon with the ability Insomnia such as Noctowl or Vigoroth.
Well, most psychic Pokemon can learn hypnosis. But sleep powder will also do the trick.
Hypnosis is not a TM or a HM. the only way for pokemon to learn it is if it learns it through breeding, move tutor or by leveling up. To know if it dose check with a pokemon site.
Snorlax does not learn hypnosis.