No, no you do not
the most common answers are yes, but it depends on the laws of where you live.
Well for one you need a business license
You do not need a license to sell clothes. You may need a license to sell on the street or in a store. It also depends on the volume of your sales.
i have a California license and i need to get a license (online) from Texas.
Yes you do need a licence.
yes
Yes, you can get a auto broker license online by first getting a Auto Dealer license because you need that to get to the auto broker license. You can take tests then buy auto broker license online.
Yes and No. Yes to be a legitimate business. No you dont need a special license like a cosmetologist.
No. You can have an online store with an LLC, a sole proprietorship or no business model.
yes i am pretty sure you do
No you need to take a regular class to get an electrical course license although in some cases you might be able to take a course online and get a license.
To get a gun license you would need to go into a gun store in the town you live in and ask for the information you need.