plural of kidnapped robot problem

plural of First World problem

plural of stable marriage problem

plural of stable matching problem

(euphemistic) A child who is particularly difficult to raise or educate, especially due to a lack of self-control and disruptive and antisocial behavior.

An observation that contradicts an accepted law or theory.

A mental representation of a particular problem, including initial, final and possible intermediate states

(computer science) The problem of deciding in finite time whether a given program will finish running in finite time, when given a certain finite input.

(probability theory) The mathematics problem that concerns the probability there exist two people in a random group who share a birthday.

A problem that has been posed in a field of study such as mathematics or theoretical computer science, but whose answer is not yet known.