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.
I don't think you can hold 2 valid British Passport, but you can hold Dual Citizenship and have 2 valid passports from different countries.
Passports for minors are valid for 5 years.
Yes, Pakistani Passport holders need valid passports and visas to enter Ecuador. There is a list of all countries requiring visas at the related link.
1) All British passports are the same length (and width). 2) If you mean how long must it be valid, the answer is zero. The Canary Islands are part of Spain, which is in the EU. So long as your passport is valid a British Citizen can travel anywhere in the EU
Usually yes, since you hold a British Passport. But of course travelling is safer when you have enough amount of validity in your passport. But if you are returning to your country, it's alright to have just a valid and unexpired passport.
US passports are not valid for non-humans
In Spain, the passport is valid for three months after the length of stay. The passport must have been issued within the last 10 years.
No, a U.S. passport holder cannot get a visa on arrival in Suriname.Specifically, the U.S. passport holder must have a valid passport and a valid visa already in hand. Additionally, a business visa must be accompanied by a letter of explanation from the sponsoring company as to the reason for the visit. But whether a business visa or not, the U.S. passport holder also must be able to produce a valid return ticket.
sure
Yes. Threre is no minimum passport validity for EU citizens travelling to other EU countries.
as long as its valid, the new passports are now blue.
no
Passports are generally used for Travel and as a form of valid Identification and a proof of nationality. You are admissible to a country when you hold a passport and the needed other documents to enter like the Visa.