Yes.
Of Course it will.
You can only get Eggs if the male is in the same egg group as the female. yes
By putting a male and female Turtwig into the daycare, eventually they will form an egg.
Yes. If you leave a female magmar or magmortar in the daycare with a compatible male pokemon, the daycare man will eventually give you an egg. If you don't have a female magmar or magmortar, you can put a ditto in the daycare as a makeshift mate.
put two Pokemon in the daycare 1 female and 1 male
by getting a male and female electabuzz and putting them into the daycare until they make an egg.
No, you cannot get a Bidoof by breeding a male Bidoof and a female Pikachu together. You would get a Pichu which is the pre-evolved form of Pikachu because the female determines what the resulting Egg is. In order for a male Bidoof to breed a Bidoof Egg, it would require the male Bidoof and a Ditto to be placed in the Daycare because Ditto can act as either the male or the female for breeding purposes.
ex. you can get an egg by setting a female poliwhirl and a male poliwhirl and put them into the daycare. if wait a couple of minuttes you go to the old man at the daycare and he will give you a Pokemon egg
My answer is based on actual experience: I put a (female)roselia and (male)shroomish in the daycare on ruby, and they had an egg (it hatched as a roselia). However, I put a (female)pikachu and (male)minun in the daycare on emerald, and they didn't have an egg. Hope this helps a little. Sorry for not having a direct answer ;)
Put a male and female mightyena in the daycare. Then, after a while you'll get an egg. Keep it in your paty and it'll hatch after a while. Breeding hint, ditto can breed with a male or female pokemon. It happened with my infernape, typhlosion and emboar.
To breed Pikachu you need to leave a male Pikachu and a female Pikachu (or a Ditto and a Pikachu) at a daycare. If you wait a while, the female will be holding an egg.
you need to put a male and female Pokemon in the daycare, or with a ditto(gender doesnt matter), and in a bit, go talk to the guy outside the daycare, and he'll have an egg.