When it comes to testing our knowledge, we all share a little bit of light-hearted competitiveness (although at apt some are worse than others...ahem). The most recent test that we have come across is Adweek’s Brand Paternity Test. Whenever you buy something, chances are that a proportion of your money will be going to a parent company, although most of the time this is an unknown fact.
Have a go at this...
http://www.adweek.com/adfreak/adweeks-brand-paternity-test-who-owns-what-148031
I am sure many of the answers will surprise you, but hey, you learn something new every day! It is a tough one; apparently it takes a rare and inquisitive marketing mind to remember these relationships.
Good luck!