They're both found in the skies of Oblivia. Togekiss is a special post-game Quest pokemon. It flies over the place where Dolce Island used to be, and can be found there afterwards. Honchkrow can be found post-game slightly west of Sophian Island, a tiny touch north of the Aqua resort. I personally think that Honchkrows are VERY hard to catch up to. They're even harder than Zapdos! (I haven't caught one yet, so I can't tell you about that.)
in the daybreak ruins in a buch
the power charged sign makes you go faster so that you can catch honchkrow/togekiss with ease
you don't catch it
dangerous cliff
I have no idea but I think you have to talk to someone somewhere, I don't know where so don't ask me.
Togekiss is only found in the sky (use latios or staraptor)!
in the daybreak ruins in a buch
he is in the sky
the power charged sign makes you go faster so that you can catch honchkrow/togekiss with ease
you don't catch it
First of all, you have to clear the game. After that, Togekiss and Honchkrow appears in the sky. Honchkrow is in the area between Aqua Resort and Tilt Village. There is a chance to see Togekiss, Honchkrow, Pidgeot or Skarmory. Only one of them appears to the sky. I recommend you to use charged Latias/Latios sign so you can catch it. Hope this help!
Nowhere.
dangerous cliff
You can not catch a manaphy on Pokemon diamond. you must trade it somehow on a Pokemon rangers game.
Yes its very rare and it evolves to togetic and in Pokemon platinum it can evolve again to togekiss.
You cannot do that unless you have Pokemon rangers 2. So if you want another riolu you have to get Pokemon rangers 2.
do quests and catch legendary Pokemon to get signs