Generally the manufacturer will have a seal or notification stating "Not for individual sale" which means that the product should not be removed from the container and sold separately. Selling any product without paying tax is a black market operation and is illegal, but I highly doubt anything would be done. Its more to cover the company if anything were to happen to someone then they couldn't be blamed for it if someone tampered with the product after the pack was opened.
Yes it is legal to sell them individually as long as you dont make a big profit on them.
They make lots of bottles then sell them
do you sell empty 5 liter wine bottles?
no
no it is not illegal to sell drinks out of your car
no
Yes, a renounceable right can be sold separately. Renounceable rights are attached to a security that one can buy or sell separately. If an owner of a renounceable rights chooses to sell it, ownership of that right will pass on to the new owner.
Yes, it is illegal to sell legos coming from China.
Is it illegal to sell sick puppies to the public at a pet store?
Depending on where you live it may be illegal to sell anything without the proper permits.
Retailing.
The term "bootleg" originated during the Prohibition era in the US, when people would hide bottles of illegal alcohol in their boots to smuggle and sell. It later evolved to refer to any illegal or unauthorized activity, such as pirated music or movies.