CBA interview questions

1. There was a table of transactions of several customers, all fast in and out, likely to be a mule. Question is which one is most likely a mule? 2. Another table showing cases, with case ID (likely to be case ID), case created date, exposure, loss, anticipated recovery, rule fired or not, etc. question is how many cases, and what's the total loss and detection rate. 3. SQL question is simple, give you 3 tables, you need to be able to join.