Your question can only be answered if we know where you're going. Some countries require visas from US citizens, others do not.
Probably a ten-year wait if at all.
he has to apply in the country of which he is a citizen: eg: a German citizen living in Denmark must apply at the German consolate to obtain a Visa
Nobody can work in the visa on a visitor visa. Short duration courses like cookery class that will not add any credits to a course can be attended using a visitor visa. But working in the US, that will enable you to draw salary is not allowed on a visitor visa.
No US citizen does. No legal resident does. Only non-resident aliens on student visa, tourist visa, or visitor visa need work permits.
Does not matter if you are a US Green Card holder or not, when you have an Australian visitor visa, you can go there.
a) a visitor with a green card/visa,,, or b) an illegal alien,,,or c) a U.S. citizen,, in that order these days
in the visitor's visa
There is no such thing as a Puerto Rican visa. Puerto Rico is part of the United States and if a visa is needed by a visitor it will be a US visa.
According to the naturalization law, yes, your child is a US citizen because he's born on US soil, regardless of the reason you are in the US or your immigration status.
http://wiki.answers.com/Q/What_is_the_process_for_a_citizen_of_the_India_to_marry_a_philippina_girl_in_india_on_a_visitor_visa"
A US citizen does not require a visa to visit Dubai, only a current and valid US passport. Proper visitor documentation will be granted, free of charge, upon arrival of US citizens.
No, you need to apply Canada visitor visa~