Depending on where you live it may be illegal to sell anything without the proper permits.
no it is not illegal to sell drinks out of your car
No, it is not illegal for a creditor to sell your debt.
No, it is not illegal to sell a house for cash.
No
Yes, it is illegal to sell legos coming from China.
It is illegal to sell dog hair in the state of California.
Yes, it is illegal to sell money as it is considered counterfeiting, which is a criminal offense.
Is it illegal to sell sick puppies to the public at a pet store?
No.
Used mattresses are not illegal to sell, but in some places they may have strict regulations.
Yes, it is illegal to sell a person. Human trafficking is a serious crime that is punishable by law.
No food is illegal to sell in college in the US. However, it is illegal to sell foods laced with drugs, such as marijuana brownies. This is due to the drugs inside of them, though, not the food itself.