word problem

/W ER1 D P R AA0 B L AH0 M/
noun
  1. 1

    A mathematics question that states verbally what is usually expressed with symbols or diagrams.

  2. 2

    A question of whether an element of a certain group (or monoid or the like) is the identity, given an obscure representation of that element.

Source: https://en.wiktionary.org/wiki/word%20problem