Mixed Category Trivia Creation

I'm looking for a set of medium-difficulty trivia questions and answers. The questions should cover a mix of categories, specifically history, science, and entertainment.

Requirements:
- Questions should be medium difficulty
- Categories: history, science, entertainment
- Engaging and diverse question formats

Ideal Skills and Experience:
- Strong knowledge in the three specified categories
- Experience in crafting trivia questions
- Ability to balance question difficulty