How can i play world of warcraft on my pc alone?

I'm sorry to tell u this but world of warcraft is an online rpg the only possible way of not playing online is creating a server only for yourself but it will take weeks or maybe even months to create your own server.

You can't. It's an MMORPG (Massive Multiplayer Online RolePlaying Game). If you want a good single player RPG game, try out Oblivion or something else. If you like WoW's storylines, maybe you'd be interested in Warcraft 3, but it's more of an RTS type game than an RPG. WoW is not a single player game and isn't meant to be.

Recipes

You can get new recipes in several ways: as a reward for a quest, as loot from a monster or chest, or even by buying them from a merchant. A few recipes also come for quests or are only available during special holidays.

You can have your friends be on the lookout for new recipes for you. Cooks are not as common as other tradesmen and this will allow you to have an easier time finding recipes. People may even be more willing to donate recipes to you! Check the auction house for recipes too.

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You cant, World of Warcraft is Internet-Subscription dependent. Everything in that game can only be done online.

could just do a rpg server and not talk to anyone lol