These tests are probably designed to check your motivation, not your skill. If Google is asking questions about manhole covers, you better study about them bef

These tests are probably designed to check your motivation, not your skill. If Google is asking questions about manhole covers, you better study about them before an interview. A candidate who can answer such a question would more likely want to badly work for Google. That is probably a better predictor for a good workplace performance than raw skill.