WPP Intern interview questions

I interviewed for an internship position at WPP Shanghai. I got a phone interview and it only took five minutes. The questions were basic and simple. I thought I didn't pass the interview because the time was so short. However, I received a call one day after the interview and HR told me that I passed the interview.

They first call me for aptitude test followed by interview round. But overall process was very slow. Thd result for apptitude was given to me in the couple of weeks and same with interview. The employees are only confused about they selection process. Really dissatisfied by there offer and all the process.