no, u have to change it on yr passport too
No, a deed poll is not a proof of identity, only a proof that you've changed your name.If you've changed your name and want to apply for a new passport (in the UK), the Identity & Passport will want to see your birth certificate and your deed poll.
No
In most countries, yes you can.
With the U.S.'s new restrictions, you need a passport any time you leave the country. You'll want the birth certificate to get the passport, though, so in a sense you do use it to go on a cruise.
No. You must have passport if you are flying there. If you are going by boat, then an enhanced drivers license (EDL) or a US passport card is sufficient.
In general the answer is no. Many people have a social security card for work purposes only. Check with your local social security office for details. You must be a US citizen to get a US passport. If you are not a US citizen, then you aren't eligible for a passport.
Since the mother herself was born in Canada, the child is eligible for Canadian citizenship. You should contact the nearest Canadian embassy or consulate general to apply for a certificate of Canadian citizenship. In the meantime, the child still can enter to Canada using his/her American passport or birth certificate (birth certificate can be used instead of a passport only if he or she is under 15).
No, you need a passport to enter another country.
No, you can't
Pay your child support.
The passport is the best document to have. There are some items that can be used instead of a passport, but they are limited. See the page below for the detailed requirements.
Naturalized citizens cannot obtain a U.S. birth certificate. Your Certificate of Naturalization is your only proof of citizenship, and you should therefore ensure it is in a safe place. Don't fold it, instead put it in a sheet protector, and into a safe deposit box at a local bank, or a fire and water proof safe. Make sure you apply for a passport as well, as that is additional proof of your US citizenship.