Answer:
Besides Paris, what is the capital of France?
I occur twice in eternity. And I'm always within sight.
Sitting down you have it, Standing up you don't.
Pointing North, South, East, and West it saves the lost and helps the rest. What is it?
There is an ancient invention still used in some parts of the world today that allows people to see through walls. What is it?
How did the farmer find his wife?