A passport isn't required to travel between the UK and Ireland regardless of your nationality. However, if you intend to fly there, you will have to produce acceptable photo ID, and a passport is the easiest way of doing that. To be absolutely certain, you should double check with the carrier that you are proposing to use.
NO.
Yes. U asked the officials ... You can enter brazil with an expired Brazilian passport
A British citizen cannot fly to England on a photocopy of an expired passport, even if it is for renewal. Airlines require a valid passport for international travel, and an expired document, even if it is a photocopy, will not be accepted. It is advisable to have a valid passport before traveling to avoid any issues at the airport.
No. It must be a valid in date passport.
You must always use a valid American passport when entering and departing the US even if you are a dual citizen.
No, my passport application has not expired.
Your question does not make sense. You need to be a US citizen to have an American passport. If you have a green card and an expired Russian passport, contact a Russian embassy in the US and they should be able to issue you a travel letter or stamp your passport so you may travel back to Russia. But returning to the US is another problem.
No, you cannot fly with an expired passport.
Yes, you can renew your passport if it has expired.
No, an expired passport cannot be renewed. You will need to apply for a new passport if your old one has expired.
No, an expired passport cannot be renewed. You will need to apply for a new passport if your old one has expired.
No, it is not possible to travel with an expired passport.