It would be nice if you also provide hints to solve the problems as that might help candidates, and also somewhat would resemble phone screen. You might also want to emphasize more on writing code comments over getting the solution 100% correct. I literally hate platforms like codilty where getting solution 100% correct in the defined time is the main motive, rather than understanding the candidates thought process.
I'm curious because this is what we do and I hadn't considered that we might miss some good people because of it.