Microsoft

The hiring process involved a brief screen, an on-campus technical interview, followed by an on-site Seattle interview. The on-campus interview is fairly straightforward, but the on-site interviews ranged from slightly unclear to very casual and fun

They asked me to draw the shortest line for a mouse to get from one point to another on a cube, the furthest possible distance. They want to see if you can think outside the box.

One phone call initially with a recruiter to outline the process. Four 45-minute technical interviews during the onsite. One final 30-minute interview with a hiring manager (only for some people is what I've heard).