Will divorce take place if one tells someone that he will divorce his wife?

Q: Please advise if talaaq takes place in the following incidents:

1. Telling my wife that we will get divorced.

2. Telling my brother in law and wife that I have decided (meaning that I have decided that I want to and will divorce my wife).

3. Telling my father in law that my wife and I both decided that it is best for us to get divorced.

4. Telling my mother that there's no other option (meaning that there's no other option for my wife and I other than getting divorced)