Yes, you can and are allowed to do that. Many seller's do just that, buy from other eBay seller's, turn around and make money off of what they bought.
Wikipedia has a good overview on reselling rights. However for more detailed information particularly with regard to legal aid, it might be best to consult a solicitor or an organisation like Avvo.
yes, as long as you dont sell them for more than retail. (price you bought it for) It is also legal for you to make your own wine of any kind as long as its not for "legal tender" yes, as long as you dont sell them for more than retail. (price you bought it for) It is also legal for you to make your own wine of any kind as long as its not for "legal tender"
Exclusive ownership of raw materials a legal barrier to entry
i have just bought a rego'd 2000.doubt the mufflers legal though! i have just bought a rego'd 2000.doubt the mufflers legal though!
It is legal but its not nice if you smell of sweat or bumping into people.
heroin
I don't know if one has been done before, but as long as it's legal (sometimes there are copyright issues over reselling a product), it is theoretically possible.
you need a paper saying this is street legal from the company you bought it from
Herb grinders can be bought from specialist retailers such as Everyone Does It, Grass City and Legal Buds. They can also be bought from Amazon or eBay.
yes if it was like that when it was bought
It is perfectly legal for Walmart to make their employees pay for their work clothes, even if it is a uniform. Nobody buys me work clothes. I have to pay for them out of my salary.
None whatsoever if you bought it, "As Is".