No of course not! you'd need an airmail stamp.
Yes, but you may pay more to mail the package if it only weighs one ounce, and you use a one ounce Airmail stamp.
Sadly no, you can not use food stamp for peapod
No.
No, it would not be accepted. It can only be used for letters posted in the Republic of Ireland.
no
yes you can you can actuelly use any kind of stamp
no
yes because i use my card in new york
yes because i use my card in new york
No. It's enough to write "Par Avion - By Airmail"clearly in the top left hand corner of your envelope.
No. The forever stamp is intended for domestic use only and doesn't meet the requirements of the Universal Postal Union for international mail.