Qualcomm Summer Internship interview questions

Had 5 different interviews with 3 different teams inside Qualcomm. All of them were on phone. Everyone who talked to me was really nice. They do not mean to trick you on the questions and give hints. Some interviews were very technical, i.e. give you a problem and you're supposed to solve using pen and paper while saying your thoughts out loud, and some were more of getting to know your past work only.