When playing an audio/video file, what is the data rate?

I read that FLAC files are played at 900kbps. What is the data rate for the various audio file types?

When a video file is played, what is the data rate for the variouse video file types?

When a video file is played, what is the 2-channel data rate and what is the multi-channel data rate?

MP3s can be encoded to a specified data rate, with lossless FLACs it will be whatever the original PCM data rate was.