"What kind of correlation did they find between the candidates' interview score and their actual performance?

"Zero relationship," Bock says.

And those beloved brainteasers? "A complete waste of time," he adds. Knowing how many golf balls fit into an airplane or how many gas stations are in Manhattan "doesn't predict anything," he says, they just make the "interviewer feel smart." "

That was the impression I got every time I've interviewed at Google.

That the interviewers were asking me questions so they could feel smart.