When did Alex feel better? (Alex began to feel better after he ate and drank some coffee.)
What did Alex do before he started to feel better? (He finished eating and drank some coffee.)
Did Alex feel better before he ate something? (No, Alex began to feel better after he finished eating.)
What may have helped Alex feel better? (The food and coffee may have made Alex feel better.)
I don't like the "Write down..." style of questions. Just ask a direct question. You can say add "Make sure your answer is a complete sentence" so they don't just write "finished eating and had some coffee."