Here’s a properly worded version of your post, depending on the context you intend:
"Contains 6,000 questions and answers." Option 2 – If describing a book, database, or exam set: "Includes 6,000 expertly crafted questions and answers." Option 3 – Active / present tense (e.g., for a product or AI): "Provides 6,000 questions and answers." Option 4 – If you mean someone has authored them: "Sets 6,000 questions and answers." (This is grammatically correct but unusual; “sets” typically means “establishes” or “arranges” — unless you mean a person or system compiles them as a fixed set.) Option 5 – Clearer active version: "Compiles 6,000 questions and answers." If you share the exact sentence or intended usage (e.g., headline, product feature, resume bullet point), I can tailor it further.