Some places do ask “puzzle questions” - but they aren’t generally for testing IQ, they are intended to allow the interviewers to see how the candidate approaches a problem. We don’t say: “Here is a problem, figure out the answer” - we say “Here is a problem, we don’t care whether you get it right or not - but just tell us how you’re trying to solve it.”
There are many examples - we used:
You’re playing ‘Russian roulette’ where you have a loaded revolver, and take turns with another person putting it to your head and pulling the trigger. This time, there are two bullets, placed in consecutive chambers of a 6 shot revolver. The other person spins the cylinder, puts it to their head and pulls the trigger…CLICK!…nothing happens. They hand the gun to you - you have the choice to either spin the cylinder again or to leave it as-is before putting the gun to your own head and pulling the trigger. Which is the safest thing to do?