SQL (how would you get salaries of employees from table based on condition), Power BI (which visualization would you use for this problem), problem solving (given a tape measure, can you tell me how many basketballs can fit in the room), behavioral (what is your greatest achievement), python (what kind of plots you can do with matplotlib), data science (how to deal with categorical data, why does overfitting happen, how to check for anomalies or outliers), etc