Question

Q: A girl is sitting in a house at night that has no lights on at all. There is no lamp, no candle, nothing. Yet she is reading. How?

Answer 1

She could be reading on a kindle or Mobile phone.
Or she could turn the lights on, if they are not on

Answer 2

There can be multiple conditions:

1. Through Moonlight (full moon day)

2. She might be reading on a phone or an electronic device.

3. Refected light from an outside source.