There is a draft of a book, Cell Biology by the Numbers, also see dropbox, by Milo and Phillips, that is just amazing! It is a set of questions with answers briefly given, such as how fast is translation and transcription. Also how big is a cell. It is really a fantastic amalgam of questions, answers, and technique. It is not yet published but I would argue that it should be on the desk of anyone trying to do real work in the life sciences. The questions and answers alone are a gold mine but the way they arrive at them and explain them are sine qua non.
Keep a watch out for this one, it is a true gem!