If you subscribe, the leave room button will become available. 

The clock means, a person is away or has been inactive from the keyboard for a while. Hover your

The sign will remove automatically after a couple games, once you stop cheating with the utilization

That is not possible. You're playing against real people on the other side of the PC/mobile. If you 

You state it is just a game but complain about no change in points? :S