A more thorough explanation:

QUAESTIO VEXATA

Quaestio vexata is a Latin term that means a "vexed question." It refers to a question or issue that is difficult to resolve or has no clear answer.

One example of a quaestio vexata is the debate over whether or not the death penalty is an effective form of punishment. This is a controversial issue that has been debated for years, with no clear consensus.

Another example is the question of whether or not climate change is caused by human activity. This is a complex issue that has been studied extensively, but there is still much debate and disagreement among experts.

These examples illustrate the concept of a vexed question because they are both issues that are difficult to resolve and have no clear answer. They are complex and controversial topics that have been debated for years, with no clear consensus among experts or the general public.