The best candidates would have that question wrapped up in 5 minutes. Like they're not even having to think about it, which is honestly all I cared about testing for -- do something really easy really fast so I know you're not BSing me, and then we can move on to just having a conversation about your past experience.

One of the worst guys took 20 minutes, with me having to coach him through it the entire time. It was a true exercise in patience, but I don't mind helping people learn new things. When he got his rejection email, he actually complained to the recruiter because he thought he did really well. Dude...

My version of fizzbuzz (I'm in backend/ML/NLP) is counting how many times each word appears in a string. Literally `return Counter(text.lower().split())` but it's totally fine if you want to do it in a for loop or whatever, as long as you can fluently write an incredibly simple function.

Half of the people I screen fail it. It's crazy.