On the Area51 stats, it says we have a rate of 8.8 questions per day. And the rate is dropping very quickly (was at above 10 some days ago).
I tried to redo the maths: we have 585 questions and the site is 33 days in beta. Simple math does not apply:
585 / 33 = 17.7
Where does the gap between 8.8 and 17.7 questions per day come from?