Test your knowledge - take this excellent test.
A sample question - but my favourite is question 12.
Q7. You have 7 direct reports (staff), 3 of whom are expatriates; and you have 11 direct reports (contractors) 3 of whom are locals; and you have an overall organisation of 42 people, 6 of whom are secondees from a contractor, 1 of whom is a student intern, and they are all drunk. What is the probability that you are in Russia?