You still need a British work visa.
Yes.Two passports can issued if you travel to say Israel and Arab countries. If you have an Israeli stamp in your passport, you will be refused entry to Arab countries. To obtain a second passport, you will need evidence and proof that you need one. This is usually documentation from your employer or otherwise.
You do not need passports for domestic flights in the Philippines. You only need passports for international flights. However, many people do bring along their passports as a form of ID. You will need proper identification to travel by plane.
Yes.
It depends on which country your passport is from. Some countries don't need a visa to travel to Maldives, and it is issued on arrival.
Yes but it can be gotten at the airport once you arrive if you are a US or british citizen. It is easy if you have passports from most western countrys. Some people with certain passports have a hard time getting a visa. You shouls talk to the Qatari embassy in your country.
You need it to identify a person's identity
yes Nepalese they need visa to go Maldives but they will get visa upon Arrival
Canadian, American and European citizens can enter Mexico without additional requirements other than their passports.
Thais do not need to apply for visa to go to Maldives
yes In the EU, even babies need passports. Getting a good photograph in the controlled conditions demanded by the passport authorities can be tricky!
Yes, you do.