Answer:
My second is performed by my first. A thief by the marks of my whole might be caught. What am I?
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
I'm very tempting so its said I have a shiny coat of red and my flesh is white beneath. I smell so sweet taste good to eat and help to guard your teeth.
I always go to bed with my shoes on. What am I?
I am rarely touched but often held and if you are smart you'll use me well.
When is it bad luck to see a black cat?