No, you may not, unless it is confined to a street address or box number and the name of the owner or business.
Yes. This is a federal offense. Any tampering with or destroying or 'leaving little surprises in' a mailbox is a crime. Only the post office and the owner of the box should be putting anything in it.
Local, state, and federal laws, as well as US Postal Regulations are being violated.
It is secretly putting something into someone's drink that may do them harm. So it could be putting some alcohol into a normal drink or even putting a drug into a drink. It is a dangerous and irresponsible thing to do.
putting is played outside in a garden or a local park
Putting someone's picture on a shirt is not necessarily illegal. However, to avoid problems, you should definitely get their permission first.
shoes, coat, bra, makeup, socks
No, it's not illegal. It's just bad taste.
putting outside
yes. it is illegal in all the states. but is legal in international waters
Post can mean "a long, sturdy piece of timber or metal set upright in the ground and used to support something or as a marker", or the action of putting mail in a mailbox, or putting a notice on a board, or it can mean "after a certain time or event".
No it is 100% legal to do.
THERE IS NO OUTDOOR WEATHER SAFE FOR A GERBIL! If your gerbil is outside, it can run away or get eaten by a hawk or something! Maybe if you put it in a ball outside in the spring or fall, but you'll need to stay with it the entire time it is outside. But putting a gerbil outside unprotected is really dangerous, even if you are right there.