Another relevant question - does "Sports/competitive <field>" (similar to Competitive Programming, i.e. Olympiad and code/hacker/lity/rank sites) thing exist at all? Such that the tasks are completely different to what one might expect to do on the job.

So e.g. if there is a "Competitive Bridge-Engineering" and the problems are completely different compared to bridge-engineers day job.

To continue this theme - in case you have an opening for bridge engineer - isn't it enough to discuss the previous 5 bridges the candidate has built and maybe also discuss the relevant details the current bridge project entails? Do such bridge-engineers also get irrelevant questions?