It’s more about cultural and socioeconomic bias. So you might have questions that have a bias towards middleclass suburban kids vs a poor innercity kid.
You can find examples online, but some can be quite subtle. “Banana is to yellow as Ruby is to ______” Someone who grew up with jewelry would be more likely to know this. This goes against the principle of an IQ test, and older tests were notorious for this.












I monitored mine for a few weeks, snagged a 4K player for $15. But they always had dvd and blu ray players in stock from $3 to $15. Also good place to get DVDs/blurays.
(Prices will obviously vary from region/country but thrift stores seem to be ideal for old players)