No UK citizens do not need a visa to go to Singapore just like Singaporeans do not need a visa to enter UK
you dont have to. you could have cash or checks
Yes, they do.
No, they are European citizens.
No, Serbian citizens doesn't need visa for Schengen countries, but they need visa for UK and Ireland.
Not necessary for United Kingdom citizens.
No, citizens from the European Economic Area, of which Poland is a part, do not need a visa to enter the UK, just their passport or national ID card.
no
Yes,but better to get before leaving UK.
For US citizens, a visa is not required for tourist or business visits to the UK of less than six months in duration. Other citizens, please contact the UK Embassy or High Commission in your area or take the UK quick test (see related link below).
No need for a visa, as the UK is a participant in the Visa Waiver Program.
Yes. All nationalities have to apply for a visa except for nationals from: Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand and Vietnam. A 30-day Visa is granted on arrival at both Siem Reap International Airport, Phnom Penh International Airport and land border checkpoints. E-Visas are now also available.
No, a Chilean citizen does need a visa to travel to the UK. You can check by yourself by going to http://www.ukvisas.gov.uk/en/
No, a UK visa is only valid for the UK. You need a "Schengen visa" for Switzerland.