If the deity is both omnipotent and omniscient can the deity then construct a riddle so difficult that even he can not solve it?
5274
Are omniscience and omnipotence mutually inconsistent?
50306
Why Goldbach's conjecture is difficult to prove?
146896
"Not possible" and "Impossible"
73415
The reason why the existence of inaccessible cardinals cannot be proven in ZFC
72420
Is $\mathbb{N}$ impossible to pin down?
138796
Free will in the face of determinism?
73589
Probability: A flaw in logic? The emperor's proposition with marbles and two urns
75119
Words or phrases that describe a person who knows the answer to a problem but is not believed
75600
Is Gödel's modified liar an illogical statement?
12186
How does predicate logic handle contradictory statements about something that does not exist?
38823
Can "doubt" sometimes mean "question"?
108488
Why aren't vacuous truths just undefined?
40998
Does Humility prevent Manifested creatures from being turned face-up?
74875
Do we know if there exist true mathematical statements that can not be proven?
155340
Is Nothing actually imaginable?
40439
about a difficult and weird Probability question
79553
Word for something difficult or nearly impossible to achieve