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No, a UK visa is only valid for the UK. You need a "Schengen visa" for Switzerland.
Are you seeking a visitor visa for the UK?
No need for a visa, as the UK is a participant in the Visa Waiver Program.
I once traveled to Switzerland on my UK visa.
No. Northern Ireland is part of the UK, so the visa will cover it.
No, individuals with a Schengen visa cannot enter the UK. The UK is not part of the Schengen Area, so a separate visa is required to enter the UK.
You can establish your own business in the UK if you have the UK work visa.
Tier 1 dependent visa's are visa's for family members to stay in or come to the UK. The person they are applying under must have a post-study worker visa in the UK.
The visa that is required for Pakistani people to do business in the UK is the UK Work Visa or UK Business Visa but it may be vary according to the category of your Business. For any type of visa Julia & Rana Solicitors in Pakistan provide best Visa services. You must consult with them before applying for any type of Visa.
No, you cannot visit the USA with a UK student visa.
No, you generally need a visa to work in the UK as a foreign national.
Yes, Colombians need a visa to travel to the UK.