plural of three body problem

plural of three-pipe problem

A visibility problem in computational geometry, dealing with whether a number of points in a polygon can collectively "see" (by line segments akin to a person's line of sight) the whole interior of the polygon.

plural of Monty Hall problem

plural of private language problem

plural of art gallery problem

plural of Chinese postman problem

(graph theory) The problem of finding the shortest closed path or circuit that visits every edge of a (connected) undirected graph.

(mathematics) A mathematical problem where one must determine how many grains of wheat are on a chessboard, assuming one grain of wheat is placed on the first square, and each subsequent square having twice as many grains of wheat as the previous square.

The problem of having too many options available.