Answer:
What is so delicate that saying its name breaks it?
It rows quickly with four oars but never comes out from under its own roof. What is it?
I'm white and used for cutting and grinding. When I'm damaged, humans usually remove or fill me. For most animals I am a useful tool. What am I?
With three eyes and as black as night I frequently knock down ten men with a single strike!
Kings and queens may cling to power and the jester's got his call. But as you may discover the common one outranks them all. What am I?
When is it bad luck to see a black cat?