Answer:
What can travel around the world while staying in a corner?
I pass before the sun but make no shadow. What am I?
I come without being fetched at night, hide away as soon as daylight strikes. Although I may look small, I am much mightier than what you can imagine. What am I?
I jump when I walk and sit when I stand.
A dagger thrust at my own heart dictates the way I'm swayed. Left I stand and right I yield to the twisting of the blade. What am I?
When is it bad luck to see a black cat?