Amusing joke, but just wanted to mention that bread is generally bad for birds and can actually kill them: https://ca.audubon.org/news/bad-idea-feeding-bread-ducks-and-other-birds

Traditionally in systems like D&D and Pathfinder, Wisdom is more representative of inherent common sense, awareness, and intuition and Intelligence representative of the ability to reason and learn. What actually represents accumulated knowledge is your bonus in the related skill, which is a combination of ranks (representative of time spent training/studying that skill) plus inherent bonus (in the case of knowledge, usually Intelligence since Int is representative of your ability to learn).

Some skills end up seeming like they should be a bit of both though. For example, Healing/Medicine requires knowledge of anatomy, ailments, treatments, etc (which would be Int aligned) but actually diagnosing and using it requires perception to recognize symptoms and often some intuitive choices about how best to treat ailments (which is more Wisdom aligned). It’s simpler to just pick one, and often Wisdom is chosen to avoid too many things being Int.

This. Plus, if you beat the DC by 10 or more, you get a Critical Success or if you fail by 10 or more you get a Critical Failure, regardless of the dice roll.

And for opposed skill checks only the player/NPC taking the action rolls a d20, and that’s compared against the opposing skill DC (10 + Skill Bonus). This streamlines play and reduces random variability.

So in the example here, only the rogue would have rolled the natural 1 and added 26 for a 27. The paladin’s Perception DC would be 16, so the Rogue beat it by 11 and it’d normally be a Critical Success. But since it was a natural 1, the Critical Success is reduced to a Success. They still succeeded at deception, but not quite as well as they could have.