Pig.
by using spawn eggs or mob spawners with a mob in them
you can't.
you can't.
You can't mod Minecraft PE, there's no way to add Herobrine into it.
you don't. you find them in chests by mobspawners.
You can use wool for making beds and paintings. I'm not sure about the painting but I know you can make a bed in Minecraft PE
there are no mods in minecraft pe i hope there will be
Yes. It is possible to crouch in the minecraft pe.
Nametags haven't been added to minecraft pe and they aren't craftable.
If you have already purchased Minecraft PE, then update the game.
Minecraft PE 0.8.0 does not have squids in it.
there is no jungle biome in minecraft PE