What questions can you ask and answer?
This is brilliant because you can work out very easy things like:
- How many copies were sold per second, per hour, per day, etc
My favourite question is:
- When was the album released? (Which date?)
You can also do some 'unrounding' and decide that the "8 million" is not absolutely exact, so what will the upper and lower bounds for the release date be.
You can then do some estimating and decide roughly how much money Adele will have made during that month-and-a-bit.
Source:
http://www.bbc.co.uk/news/blogs-magazine-monitor-35672287
