Google Software Engineer(Internship) interview questions

I was contacted via email (a Google recruiter ) to apply and got called in for a hangouts call to explain the interview process. Then took an online programming challenge . After i had two technical interviews via phone while coding in a google doc.

Okay, two phone interviews in which I got questions on resume. then was asked to code 2 questions which were a bit difficult. However the interviewer didn't explain them properly so it took up a lot of time so couldn't code too.