Pop qiuz for me
I flew over 4,000 miles for a job interview, took the test the following morning pop quiz style during the interview. I'd never heard of this and as a result took too much time answering questions and scored only 21/28.
Not to mention the interviewer told me not to worry about answering all 50 just do as many as I could in 12 minutes.
My mistake was in not skipping the time consuming ones and that plus advanced prep (in my case wasn't possible) of course are keys.