[dyim]

I'm sorry to hear about your experience.

Anecdata, but I interviewed for a marketing role at a 10-person startup in 2013. I asked questions #1, 2, 4, 5, 6, 7, 8, 9, 12, 13, 15, 16, 17, 18, 19, and 20 - and the company was more than happy to 1) answer immediately, or 2) say "I don't know, but let me find out." I should have asked the other questions (especially the relo package!), but I was young, naive, and not tactful enough to ask tougher questions in a "cooperative" manner.

IMO it's insane to work for a company if they're evasive about the value of your equity (#4-8). That's tantamount to lying about comp. You can usually find out how much they've raised on Crunchbase, and you can napkin-math their burn by eyeballing the team (#9-13; payroll is the dominant expense for most startups). #14 seems like a weird question to ask, but YMMV.

I would take their answer to the product-market fit question with a heaping pinch of salt (what are they going to say, "no"? and PMF means something different to everyone), and listen closely to the "feedback from customers" answer.