Apple Hardware Engineer interview questions

Gave apple my resume during a career fair at campus career fair. Got an email asking to schedule for an interview bout a week later. The phone interview lasted for bout half an hour, interviewer were nice and generally asked stuff on my resume. i thought it went well, still waiting on the offer he said would come bout 2-3 weeks later

Got a call from a recruiter and asked me to work on several problems then sent it back after 24 hrs.