You can get Unown eggs from the Lab, Shelter, or through breeding. (Once you get one of them, you can breed the other forms if you pair an Unown with Ditto)
If you'r talking about Unknown eggs in the meaning of not in your Dex, it's the same way :3 Lab, Shelter, or from trading Pokemon and breeding an egg.
Chat with our AI personalities
You have to buy them with real money, so yes.
To find Missingno on Pokefarm, you must complete a quest.
Click people's eggs and Pokemon, and each interaction gives you about 3-5 credits. Sometimes they also can be found in the Scour Areas.
To name your Pokefarm, go to your Farm page. Under the announcement bar, you will see the words "Your Farm". Click the edit button next to it, then you can name your Pokefarm.
You go to Miscellanous settings and then scroll down to the bottom. You can also check the Pokefarm Wiki next time :)