Someone writes on a paper 'I divorce you'

1i have a question if some one writes on a paper i give you divorce once but he does not write the acutal word he only writes (divorce) with an intention of scaring her wife but he does use actual word and he does not mean to divorce her but just wanted to scare her. so is he divorced.

2if some one having thoughts in his mind about talaq and he kept saying himself in his mind but he does not utter words from his mouth. he is having these kind of thoughts all the time and he does mean it at all he kept saying no i can't say that.. if some one does want to give his wife a divorce but these thoughts kept coming while he is driving lying on the bed etc..

3if some says talaq in his mind 2 times from his heart but don't utter the words but he says these words to get rid of waswasas and for second he thinks he said for his own will but only said in his mind.. so divorce happen or not.