Yes, you need a passport. Although not changing countries there is customs and Immigration and you will be not be allowed to board the flight without proper identification
ask them if you can see your passport
Yes, a person may hold both a Canadian and American passport.
There is nothing adult passport. Person of any age can obtain passport. mittalji.com
Roughly about RM10-15 per person....
name and date of birth
YES
Yes a person in England can be issued a passport even though they may have drugs convictions.
A passport is required when you want to travel outside the country inside which you were born and live. The passport number in the new blue biometric Brazilian passport is located on the information page where your photograph is.
An adult's passport lasts for 10 years, whereas a child's passport lasts for 5.
Contact the nearest British high commission or consulate general closest to where you live. You have to apply for them in person.
A better question might be what possible legal/moral justification do you have for accessing someone else's passport details. There's no way I know of to get them other than to ask the person the passport belongs to, and this is exactly how it should be.
No, a person can't get a Jamaican passport just because their grandfather is Jamaican. Only citizens of Jamaica can get a passport.