Yogurt is something that can't exactly be categorized into liquid or solid. It can be a liquid, because it does eventually take up the space you put it in (like water does). But it can also be a solid, because it is fairly firm (like a brick).
Personally, I think that yogurt would be more of a liquid than a solid. If you plop yogurt into a bowl, then it wouldn't just stay there, it would slowly swoosh out and spread within the space in the bowl. It if stays there, then it would be solid, but if it takes up the space, then it's a liquid.
If you search up "Is yogurt a liquid or solid" the results would be many opinions, and many people who say it's neither. I don't think scientists have gone into the trouble of going through experiments and research to answer the question.
So, what do you think about yogurt? Liquid or Solid?