Kath

A need is the psychological feature that arouses an organism to action toward a goal and the reason for the action, giving purpose and direction to behavior.

question raised for inquiry, consideration, or solution b : a proposition in mathematics or physics stating something to be done 2 a : an intricate unsettled question b : a source of perplexity, distress, or vexation c : difficulty in understanding or accepting problem is an obstacle which makes it difficult to achieve a desired goal, objective or purpose. It refers to a situation, condition, or issue that is yet unresolved. In a broad sense, a problem exists when an individual becomes aware of a significant difference between what actually is and what is desired. Every problem asks for an answer or solution.