Google Software Engineer(Internship) interview questions

I was contacted by a Google recruiter. After a brief behavioral phone screen in which she asked about my background and interests, she invited me to apply to the Software Engineering Internship once the job was posted, and provided me with resources on how to prepare beforehand. A time to take the OA was quickly set up, and it being my first real interview, I pushed back the date further than necessary and over prepared. The questions were very easy (2 questions in 90 minutes) and seemed like a way to weed out applicants with no coding knowledge rather than a real test of coding aptitude. Soon after I was asked to scheduled 2 phone interviews back to back. The first one went really well, but the second one was significantly more difficult and I was not able to solve the problem in time. Luckily, I was asked to give a third and final phone interview roughly a week after the first two. I scheduled this one for 2 weeks from when I was contacted. 2 weeks later I received a call from my recruiter saying that unfortunately they would not be moving on with my application and to apply again next year. Throughout, the process the interviewers and recruiters were very helpful and friendly, and recruiters never took longer than 2 business days to respond to any email.