He gave her a typical problem a candidate might be asked to solve during the interview.
As I recall, it was a permutation problem.
A hard one.
So here's Tom Friedman on the three basic skills:
There are three basic skills that students need if they want to thrive in a knowledge economy: the ability to do critical thinking and problem-solving; the ability to communicate effectively; and the ability to collaborate.
Teaching for America
By THOMAS L. FRIEDMAN
Published: November 20, 2010
I guess Google-level math knowledge falls under 'problem-solving.'