It's your job interview. Giving someone else's responses is silly.
No, the Scottish people speak Scottish Gaelic or Scots language. Galician is a language spoken in northwestern Spain.
Moscow does not speak any language. Moscow is a city. Cities don't speak. Muscovites (people who live in Moscow), however, generally speak Russian.
You generally speak to them to same way as you would other people.
Parts of the state do, others don't. Generally the people do, though.
Many Mexicans speak Spanish as their native language, so it is natural for them to use it when communicating with others. Additionally, Spanish is the second most spoken language in the United States, so it is common for Mexicans and other Spanish speakers to use it when interacting with Americans.
A foot in the mouth guy.
If they speak two languages, they're generally referred to as bilingual. People who speak more than two can usually be referred to as a linguist.
Deaf people generally know how to scream. A scream is an excited utterance that is not dependent on the ability to hear or speak.
People speak British English primarily in the United Kingdom, which includes England, Scotland, Wales, and Northern Ireland. Additionally, British English is also spoken in many other countries that were once part of the British Empire, such as Australia, Canada, and New Zealand.
Romanian people speak a Latin language. Romanians are generally browns, Caucasian type: the origin is Indo-European.
Generally, no.
Medicine was generally provided by doctors before pharmacies came around.