Below we have randomly generated you 15 getting to know you questions. However we have also included 5 random questions that are commonly used for knowledge-based authentication. A deprecated method once (and still!) used to grant access to your account if you forgot the password. This exercise will show why they have been discouraged.
Find a friend and explain the aim of the game to them. Then give them the URL to this page, and ask them to print off a set of questions. Then ask them over the next week to try and discover these questions about you - either normally, or having a special getting to know you Q&A session.