This is the 774th most frequent Spanish word.
preguntas
Questions.
Here, 'preguntas' is used as a noun meaning 'questions' to denote inquiries one may have about a subject.
¿Tienes preguntas sobre el tema?
Do you have questions about the topic?
In this sentence, 'preguntas' is used as a verb in the second person singular form (you ask or question), indicating the act of inquiring or doubting.
Preguntas todo lo que escuchas, lo cual es bueno.
You question everything you hear, which is good.
Here, 'preguntas' is a plural noun, referring to questions or inquiries that aid learning.