Probably "¿Cómo eres?" or "¿Cómo es usted?".
"How are you?" as a question. If not, then it would mean "Like you are."
It's Spanish, and if used in a sentence by itself, it means "You like to learn Spanish." If it's used as part of a question, it means "Do you like to learn Spanish?"
Pregunta is the Spanish word for "question".
Yes. Is this a question?
"¿Cómo es Paula?"
Me gustan los experimentos. (Assuming you meant 'experiments' in your question)
¿Qué clase te gusta más?
in depends on the question 'Sea or Tá (Like Spanish, Irish has two forms of 'to be'.)
You say something like: Yo voy a... or just Voy a...
Since spanish doesn't have "do", you would just say you have a question but make it sound like a question. So "Do you have a question?" would be "¿Tienes una pregunta?"
Address your question in Spanish is: Responde a la pregunta.
¿Qué tal te cae él? or ¿Qué te parece él?