The list of unsolved problems in kyunki are:
1. Still it is not proved that Ansh killed Vishal...including Mihir everyone believed that Karan has bribed the witness and saved Tulsi.
2. Not yet proved that Abhishek was with Ansh even during Vishal's murder.
3. What was the secret behind Abhishek and Meera..remember he was always threatning her or talking over phone with Meera.
I think the writers jusst leave the story unfinished.
Please add if u think of any.