Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

[Q]: Fact: cycles of day and night occur once per day
[A]: Cycles of day and night occur how often in a day?


[Q]: Fact: exercise has a positive impact on a body 's strength
[A]: What has a positive impact on body strength?


[Q]: Fact: a human requires rest to be healthy
[A]:
If I wanted to maintain energy I could?