In companies I worked for in the past, I definitely had to do IQ-ish tests such as puzzles and brain teasers. Many people in the tech industry have encountered this.
The cultural mythology of Google (and earlier, Microsoft, when they were the ascendant, 800-lb gorilla) was about their puzzle based interviews, and how they didn't care about your specific skill set but only raw intelligence. (We can debate about whether that was the best way to select and hire people, but I don't think there's much dispute that this was something these companies did.)
It's probably worth noting that the companies that used the brain teasers and IQ-proxy tests also did a "cultural fit interview" - basically, trying to answer honestly the question "would I be cool with spending 8 hours a day working with this person, or would I be seeking ways to kill myself?"
The problem is that those tests probably DO have cultural or gender biases. GP was pretty specific about the fact that only SOME intelligence tests have been shown to be effective and free of cultural and gender bias. So then we're back to my original comment.
I agree that an a in-house puzzle, brainteaser, and math test would probably be shown have some biases if it were analyzed according to the same processes that are used to analyze IQ tests and other psychometric tests.
The cultural mythology of Google (and earlier, Microsoft, when they were the ascendant, 800-lb gorilla) was about their puzzle based interviews, and how they didn't care about your specific skill set but only raw intelligence. (We can debate about whether that was the best way to select and hire people, but I don't think there's much dispute that this was something these companies did.)
It's probably worth noting that the companies that used the brain teasers and IQ-proxy tests also did a "cultural fit interview" - basically, trying to answer honestly the question "would I be cool with spending 8 hours a day working with this person, or would I be seeking ways to kill myself?"