1. Yes you should complete a separate entry for each flight. For circuit training it is also a separate entry but be sure to fill in the number of landings in the appropriate column.
2. Yes - all the time where an instructor is sitting beside you is logged as dual and his/her name is entered. It is important to have his/her signature in the remarks column along with the exercise number.
3. When solo you log time as PIC and enter your name but ensure that your instructor signs the remarks column and includes the exercise number as he/she is the one authorising the flight.
4. Skills test is logged as PIC and your name is entered however the examiner should sign and date your logbook with something like 'This is to certify that MichaelPL has undertaken the skills test for the award of a JAR PPL(A) and has successfully passed all stages' - signed examiner - license number - date etc.
5. Same as number 2.
6. Yes - three separate entries and ensure that you ask the two airfields visited to stamp and/or sign the entry in your logbook.
7. ..........and finally stay well clear of idiots like blommers whose negativity and lack of intelligence manifests itself in childish posts which add nothing to a thread whose subject is an honest and open request for advice.
Best of luck for the future.