What is the azimuth of sunrise and sunset on the winter solstice?
It depends on you latitude. For instance, on the winter solstice at 66.560719° N, the sun rises and sets at about the same time, and the azimuth is anywhere from 0° to 180°, depending on your longitude, and depending on the exact time of the solstice in a given year. You will just have to find the answer at a site that calculates this stuff for you location.