We have covered many examples of Google Answers showing some fun and sometimes controversial answers.
Here is a new one showing how a transactional query, a search to buy something online, triggers a Google Answer box for Amazon, amongst tons of shopping ads.
(click to enlarge to full size)
This comes up for the query [nespresso compatible capsules].
Typically Google doesn't want to show Google Answers for these types of queries and in this case, it doesn't really answer the query.
Forum discussion at Twitter.