No.
No, US citizens are currently not able to obtain an Iran tourist visa for travel to the country.
Yes, Mexican citizens can travel to the US with the appropriate visa or travel authorization, such as a tourist visa or a valid passport with a visa waiver.
No, US citizens do not normally need a Schengen visa. They are normally allowed to stay for 90 days as a tourist without a visa.
US citizens don't need visas to enter the US, so it doesn't matter what kind of Indian visa you have. The Indian visa is permission to enter India.
A US citizen can remain in the UK for 6 months on a tourist visa, however not allowed to work.
No, you cannot work in the US with a tourist visa.
US citizens can obtain a Sri Lankan tourist visa for 30 days at no cost on arrival; provided that they have a return air ticket and sufficient proof for citizenship.
Your arrival in Cuba doesn't have a positive effect on your ability to get a United States Tourist Visa as a resident of the UK. If you are a British Citizen you may be able to come to the US without a tourist visa, under the Visa Waiver Program.http://www.gregorypsheehan.com/immigration/do-i-need-a-visa/
No, someone with a tourist visa is not allowed to work in the US.
A tourist visa typically allows you to stay in the US for up to 6 months.
A tourist visa typically allows you to stay in the US for up to 6 months.
The maximum stay allowed for a US tourist visa is typically 6 months.