For a start you don't ask such subjective questions, that's a bit silly, instead you ask for e.g. the death toll of Israel vs Palestine in the last year, the number of deaths surrounding the tianammen square protests, if it gives you a straight answers with numbers (or at least a consistent estimate) and citing it's sources it's a good start.
Let's take the example you have listed:
1) where would you get the death toll from? What would be the sources of truth?
2) Are there conflicting sources?
3) if yes, what is your expectation for the correct response?