You cannot have a passport without your knowledge. You must affirmatively apply for a passport to obtain it. Absent some mental defect, you'd know about it if you'd done so.
A passport is when you go abroad and you need that to board the aireopane so they know that you are cheating to get on a plane without a passport
Obviously you do not.
A passport is when you go abroad and you need that to board the aireopane so they know that you are cheating to get on a plane without a passport
About half of patients with pubic lice don't know they have it. It's not clear how long you can be infested without knowing.
err...without you knowing or your friend knowing>?? she cant be a lesbian without knowing...attraction comes naturally, she has to know - she can always go to a strip club and check if she gets horny. however she doesnt have to tell you.
Yes, you can have chlamydia without your doctor knowing. If you don't get tested, it's not likely that your doctor will know if you're infected.
What exactly do you mean by "individually"? Assuming you're asking about a US passport: Minors are required to have their own individual passports, but a minor must apply in person with both parents/guardians; they can't get a passport without both parents knowing about it and approving of it.
==it is impossible to know without knowing the value of y==
No, you generally cannot renew your passport without presenting your old passport as it is required for the renewal process.
No, you cannot enter the US without a passport.
No, you cannot leave the US without a passport.
No, you cannot leave the country without a passport.