A concise description of a problem

(statistics) The difficulty in drawing inferences from cross-cultural data, due to the statistical phenomenon of autocorrelation.

(mathematics) A theoretical problem in which every nth person, counting around a circle of people, is chosen for execution, and this process repeats after the removal of each chosen person, with the last person left being freed. The problem is to select one's position so as to be the last to be chosen.

(philosophy) The argument that an omnipotent and truly benevolent deity would not permit evil.

(philosophy) The epistemological problem that a description of knowledge as "justified true belief" is not adequate: there are counterexamples where an individual has justified true belief of something and yet does not know it to be true.

is there any problem?

(philosophy) A problem that arises solely as a result of a misuse of language

(sciences) A simplified problem with clear constraints and parameters, usually used as a tool to understand a related real-world problem.

plural of problem statement

(networking) The problem of optimizing a network to handle a large number of connections (roughly 10000) concurrently.