Curiosity calls on you from time to time to ask those number crunching questions like;
Compare the size and atmosphere of Earth and Mars or Jupiter.
What are the cultural comparisons between China and USA.
How do I calculate Gravity.

There is a site that has been compiling statistics and formulas and over the period of 20 of R&D has created a search engine style interface that recognizes your queries and generates results based on statistical data.
http://www.wolframalpha.com

wolframalpha.com contains components such as;
Linguistic analysis
Curated data
Dynamic computation
Computed presentation

Check it out!