Is a divorce done by the judge valid?

Her husband divorced her and claims that he was drunk

Divorcing a wife because of her bad attitude

He said to her: You are not my wife and I will never come back to you

Threefold divorce counts as one according to the correct scholarly opinion

She raised a knife against him and threatened him so he would divorce her. Does the divorce count as such?

His wife reviles him and insults him. What should he do?

He said to his wife, “It’s over” and he does not know whether he intended then to divorce her or not

He swore to divorce her three times in a moment of anger

He took his wife back during her ‘iddah on the basis of a fatwa but she obtained a different fatwa and married someone else