Nothing, Because This Is Impossible. All Eggs Will Hatch At A Different Time.
no. it is not possible, all eggs are the same except that they hold different pokemon.
If you mean what Pokemon hatch from eggs, all of them, excluding legendaries. (Although Manaphy is an exception) Legend eggs can sometimes be hacked, though.
No, they can't. Eggs can only hatch in Pokemon Diamond, Pearl and Platinum if you walk around with them for a while. In Pokemon ranch, the only place you can go is to other people's ranchs through club look-see, and you don't take your eggs with you there.
In Platinum, you can have the egg in your party with a Pokemon that has Magma Armor or Flame Body to halve the amount of steps you have to take
no you can't
Yes you can, but it may take a couple of tries as you need the same amount of steps for the eggs to hatch at the same time. Also you need the space in you party to hold the eggs.
Bad eggs generally dont hatch. Somtimes they'll hatch into another bad egg, other times they'll hatch into a glitch pokemon.
Just look for a Pokemon with flame body ability and then your eggs will hatch.
If you're asking "will an egg laying Pokemon hatch their eggs", then no. You have to get the eggs from who owns the Pokemon and you have to run around so it'll hatch.
You cannot hatch eggs in My Pokémon Ranch.
Just keep running around and soon it will hatch
Not sure if anyone has ever hatched a Bad Egg in Pokemon Platinum as they very rarely ever hatch. Although, in other games they have sometimes transformed into invisible, shiny, Bulbasaurs. Bad eggs have a record for messing up games. You shouldn't try to hack for it.