Just did it, and got 14/15. But see below.<p>Saw this thread yesterday and at first did not feel like taking the quiz (because I thought I would not do well, also because I didn't think it was too interesting).<p>But today read about half of this thread again. Then felt motivated to take the quiz (just for fun). Was not expecting more than say 8/15. Surprised to see I got 14/15 (but in top 3% of engineers -- definitely not :). It was definitely partly due to reading some of this thread first, else I would never have been able to figure out the Ada/VHDL question (at least just by guessing / logic / prior knowledge), even less the Piet one (since had never heard of it - at least had heard of Ada and VHDL). I guess the result was also partly due to being interested in programming languages right from the start of my career, and having at least read a little about many, and having dabbled in some (apart from the ones I worked in for non-trivial periods).<p>Anyway - somewhat interesting quiz idea.