If she has full custody, then yes.
Yes at least in the UK they can without permission. It will depend what Country you are in I suppose.
Parents that are married to each other have equal rights to their children and does not have to ask permission from the other one. If they choose to have some rules within their marriage it has nothing to do with the law.
No
Parental permission is never required if you are an adult. Most countries will allow it if both are over the age of 18.
only if the mother has full custody or if they are married i am pretty sure that is legal.
You can get engaged without parental permission, you just can't get married until you are 18 without their permission.
no
In Tennessee you can get married without permission at the age of 18. With parental permission you can get married at 16. Under 16 requires a court order.
It depends on the laws of the state/country you are in, but you might be able to if a judge approves it.
Not without his fathers and the courts permission.
Without parental permission it is 18. With permission it is 16.
No, you must be 18 to get married without parental permission anywhere in the US.