Google Intern interview questions

I applied through careers site for Software Engineering Intern North America role. I got contacted within 2 weeks for interview date. They were very flexible with interview dates. I selected my date for- after 3 weeks. On the day of the interview, I had 2 phone calls one after another with a gap of 1-2 hours (dont remember). Afterwards within 2 weeks, I was told that I got selected for host matching process. I was told them if no host is ready to take me, I may not get the internship. I gave my options for host matching. Was contacted back by 4 teams. One of the teams did not choose me. The rest of the three teams did. I chose the one I found most challenging. I was given an offer.