You could use data about countries (this site looks like it has a number of links to spreadsheets) and randomly generate questions of the form “Does [country] or [country] have higher [economic statistic]?”. If it’s a concern that the questions would be too easy, you could pick only cases where the statistics are in fact reasonably close.
You could use data about countries (this site looks like it has a number of links to spreadsheets) and randomly generate questions of the form “Does [country] or [country] have higher [economic statistic]?”. If it’s a concern that the questions would be too easy, you could pick only cases where the statistics are in fact reasonably close.