There are nine numbers in a Chinese passport.
If you have a European/Italian passport, you can enter Mexico without many issues.
There are 9 characters or digits on a Canadian passport.
In order to get an Italian passport you need to be an Italian citizen. The same applies to any country's passports. That is the purpose of a passport, it is a proof of citizen. So the question is really: are you an Italian citizen? Or can you get Italian citizenship (naturalisation or because one of your parents was Italian).
No, you can visit Jamaica up to 90 days on your Italian passport.
9 I just counted mine
Apparently 9 for most countries
Yes, generally all passports have passport numbers or control numbers.
Yes
$108.30
yes you can
There is basically one unique passport number for a passport holder. It is usually located in the personal information flap of the Philippine passport. This number is used to locate your application and also used for travel bookings and such.