If you mean "Can you sell a pattern copyrighted by someone else?" the answer is yes but only with permission. If you mean "Can I create a pattern from scratch, copyright it and sell it?" the answer is yes.
Yes, but be aware there may also be trademark issues if the pattern is recognizable as coming from someone else.
If the patterns are under copyright then you need the permission of the copyright holder to sell them.
If you control the copyright, anywhere. If you don't control the copyright, and don't have a license, nowhere.
Copyright infringement can occur even if you do not sell the product. Simply using or distributing copyrighted material without permission from the copyright holder can still be considered infringement.
If the mural has any copyright at all, it was initially owned by the author, but the author may sell his or her copyright to others.
One must apply to the copyright holder for permisson to use their copyrighted item.
figure it out your self
If it is recognizable as a copyright or trademark-protected character, you would need permission from the owner.
To copyright a knitting pattern in the USA the pattern must be new and original. Copyright is automatically extended to a work once it is created, but to further benefit from copyright protection a pattern can be registered. If you are concerned about copyrighting a certain pattern you may want to discuss the issue with a lawyer familiar with copyright law is the USA to ensure you are protecting your pattern to the full extent possible.
Almost certainly, yes. The copyright laws protect the image of cartoon characters. When you sell it for profit you are stealing the right of the character's author to sell his own work.
Transfer of intellectual property must be done in writing. See the "transfer of copyright" section of the pdf linked to below for instructions.
You have to write a script or book and then copyright it and sell it to them, if you don't copyright it and still send it to them, they can steal legally and copyright it themselves. If you want any money from it you have to write it and copyright it, then contact Lifetime afterwards to see if they are interested.