help me brainstorm some questions for my SQL project on supermarket data. my sql project objective is To leverage SQL driven data analysis for maximize sales by analyzing sales data, optimizing products, and understanding customer behavior. so far these questions i have came up with on my own due to the easyness of writing the query $.$but i need one more question please help me come up with it$.$ please try not to use chatgpt or ai$.$the er diagram consists of invoice id$,$ branch, city, customer type $($member or normal$),$ gender, product line, unit price, quantity, tax $5\%,$ total, date, time, payment cogs, gross margin percentage, gross income, and rating. here are the questions ive come up with: What are top selling products by category?

What is the average purchase value per customer type?

What are the top selling products by Members?

What is the average customer rating by branch and membership status?