Asking puzzle questions during lunch interview is absolutely not just socialization. In fact I remember as a kid my dad explaining how lunch interviews are culture tests and how to succeed them- but it's very unpleasant for me. Best lunch "interview" I ever had was at Noname at Google some 15 years ago, it was just a relaxed conversation where we discussed the fact that Google's chefs made and served consomme.

I absolutely don't like solving puzzles with other people. On the other hand, I do enjoy writing code on my own, solving problems (not puzzles) and then sharing the results in a readable way with others.

I do like to socialize with peers, but never playing games (I prefer to play games on the computer against NPCs).

THe reason I don't like this is there are people who've asked me ludicrous puzzle questions before and they are proxies for 'people I wouldn't want to work with'.