I figure I'd add a couple based on Nahda and Ttocks. So first...
NAHDA
1. Favourite music genre?
While Nahda doesn't "like" or "dislike" any particular music with the sort of attachment others might have, he generally favors acapella/vocals only folk or prayer songs, particularly in a vein not unlike
bhajans he may have heard from his own people prior even to the Omega Reich's reign. If not of a humble/uninstrumented nature, he'd be drawn to music such as Corridors of Time from Chrono Trigger.
2. What turns them on sexually?
Teasing. In his early life, Nahda dealt with this in a relatively healthy manner, eventually with his betrothed. When she no longer was around and after the formation of the Coordination, Nahda vowed celibacy in his path towards Nothing, though at least initially, he struggled particularly in this aspect, "testing" himself in fairly perverse ways to ensure not having "lustful thoughts." He seems to have been successful enough at least to not having sired any children (that he at least knows of), and these days, he seems to have actually largely succeeded in purging himself of no longer having sexual thoughts, or at least not acting upon them as he once did.
3. Do they appreciate modern art and why?
He appreciates any art he feels further evokes the values of the Coordination and/or Nothingism, and while he doesn't like or dislike it in ways others may grow attachment towards, he finds certain modern art either as sometimes similar to the aesthetics of the Omega Reich (ex. brutal minimalism) or more often as a reminder of the "unapproved" styles the Omega Reich banned (ex. Surrealism)
4. Do they like pets and why?
Yes, though generally because he considers "pets" as sentient beings. On one hand, he'd consider most any "pet" as an equal at least in how they should be (humanely) treated, so the only "pets" he'd care for he'd care as a free person. On the other hand, in part of his views of Nothingism, he might come off detached in matters of animal control, though he'd probably hold similar views to "people control" (when not conflicting with his non-complementary behavior).
5. What's their favourite sport?
While Nahda wouldn't be one to participate in sports himself, or be attached to sporting events, he'd be the sort to like football (soccer) as it's a largely non-hierarchical team sport that is easily accessible to any class of people.
6. Are they fashionable?
Not really, no. When he's not wearing his traditional attire of his faith, he's likely wearing very simple, boring and dull clothing.
7. What's their favourite food?
Again, while he no longer has "favorites" in the sense of attachment to preferences, Nahda once enjoyed radishes, and while he only now largely eats vegan-type meals (rice, roti bread, goat's milk with consent from the goat, etc.), if eating at all, his "favorite" is generally any "humble meal" offered to him.
8. What's their learning style? Writing, Listening or practical application?
Pre-Omega Reich, most of his learning came from tutors who pontificated to him. Currently, through countless ages of doing his best to listen to people, he generally learns best from listening.
9. What would have been their favourite school subject?
While Nahda had been nudged in studies of politics and business pre-Omega Reich's reign, Nahda generally favored literature -- reading, though, far over writing.
10. Do they tend to read and what do they read?
In his early days, literature gave him an escape from the "suffering" in the world, allowing him at first to escape his sheltered life, then to "search" for stories of why suffering occurs. Since the formation of the Coordination, and to this day, he reads any stories he can to help him understand the "paths" of other peoples, and also feels (often fictional) stories help him "see the truth" more clearly. While religious texts appeal to him, he reads any texts he feels may challenge his thoughts.