I have asked the question Using electricity at night which has been put on hold with the reason
"This question doesn't seem to be about a problem. — Questions should ask how to solve a problem using everyday objects. Questions requesting new ways to use an object are off-topic unless a problem to solve can be demonstrated."
Being a member of several SE sites, I have learned to read the Tour and I considered the question to be on-topic because
Questions asking for unusual ways of using everyday objects to achieve a certain task [...]
The everyday objects in my case could be anything that uses electricity. The unusual way is to use it at a different time than normally.
Since I'd like to learn what questions to ask on LifeHacks, could someone explain why my question isn't on topic for the reason I picked? Is it not unusual enough? Should I ask how to use a washing machine without electricity instead?