▁ ▁External ▁links ▁ ▁https :// www . lin nan m aki . fi / en / rides / pan ora ama ▁ ▁See ▁also ▁ ▁List ▁of ▁to wers ▁ ▁Category : Am usement ▁r ides ▁introduced ▁in ▁ 1 9 8 7 ▁Category : Ob serv ation ▁to wers ▁in ▁Finland ▁Category : Build ings ▁and ▁structures ▁in ▁Hels ink i ▁Category : L inn an m ä ki ▁Category : 1 9 8 7 ▁establish ments ▁in ▁Finland <0x0A> </s> ▁The ▁unexpected ▁h anging ▁par ado x ▁or ▁surprise ▁test ▁par ado x ▁is ▁a ▁par ado x ▁about ▁a ▁person ' s ▁expect ations ▁about ▁the ▁timing ▁of ▁a ▁future ▁event ▁which ▁they ▁are ▁told ▁will ▁occur ▁at ▁an ▁unexpected ▁time . ▁The ▁par ado x ▁is ▁various ly ▁applied ▁to ▁a ▁prisoner ' s ▁h anging , ▁or ▁a ▁surprise ▁school ▁test . ▁ ▁There ▁is ▁no ▁cons ensus ▁on ▁its ▁precise ▁nature ▁and ▁consequ ently ▁a ▁canonical ▁resolution ▁has ▁not ▁been ▁agreed ▁on . ▁Log ical ▁anal ys es ▁focus ▁on ▁" tr uth ▁values ", ▁for ▁example ▁by ▁ident ifying ▁it ▁as ▁par ado x ▁of ▁self - reference . ▁Ep ist em ological ▁studies ▁of ▁the ▁par ado x ▁instead ▁focus ▁on ▁issues ▁rel ating ▁to ▁knowledge ; ▁for ▁example , ▁one ▁interpretation ▁reduces ▁it ▁to ▁Moore ' s ▁par ado x . Some ▁regard ▁it ▁as ▁a ▁" sign ific ant ▁problem " ▁for ▁philosophy . ▁ ▁Description ▁ ▁The ▁par ado x ▁has