s of doubt representing something to ponder or a problem to solve

symbol doubt represent ponder problem solve question marker challenge ambiguity distrust bewilderment indecision skepticism discussion perplexity enigma cloudiness uncertainty dilemma trepidation hesitation agonize grievance difficulty trouble mystery tension incertitude experience conundrum reason imperfection disruption puzzlement quandary contemplation discomfort inquiry inquisition interference concealment discontentment disbelief ambivalence speculation obscurity confusion