3. **What are the key differences between fine spirits such as single malt whiskey, vodka, rum, and gin when it comes to production methods and taste?
4. **How does the aging process in barrels affect the flavor and quality of rum and cognac, and what types of barrels are commonly used?
5. **What are some classic cocktails that use rum and cognac as base spirits, and what are the historical origins of these drinks?
