Questions:

1. Write a query to calculate how many customers in UK
   a. streamed a video in the last month
   b. rented a video in the last month
   c. did both streaming and rented in the last month
   (give all the three answers in one query)

2. Among all US customers who rented a video on Feb-01, what % of them streamed a video between feb-02 and feb-08?

3. Write a query to return, each device type, the top five customers that had the hightest minutes streamed during the last 7 days in 'JP'