To ask a question is an act of the intellect; to face a problem is a situation involving the whole person. A question is the result of thirst for knowledge; a problem reflects a state of perplexity, or even distress. A question calls for an answer, a problem calls for a solution ( from the Latin solvere, to loosen, to dissolve).

A J Heschel, Who is Man ? Stanford U Press, p. 1