Answer:
My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.
What goes in the water red, and comes out black?
In buckles or lace, they help set the pace. The farther you go, the thinner they grow.
My first half is normally made of stone, my second is crazy, and I taste sweet when complete.
Who lives in a house with one bedroom, 50 hallways, and ghosts lurking everywhere?
What language does a billboard speak?