|video=
|summary=Questions and answers in a well thought out format, it's stuff you should know...but may well not. Recommended.
}}
{{competition
|prize=a copy of ''Why?'' by Joel Levy
|text=Five people will each win a copy of the book. For your chance to win just answer the following question:
What's the average distance between Earth and the Moon?
|date=4 December 2012
}}