Number one sounds like an alternator belt to me as you said it gets louder when you rev it does it mines doing the same atm you just need to replace the belt or just check if its lose of to tight
the second as already said is normal
number 3 sounds like a shitty french problem lol
and number check the thermostat you can do this buy taking it out and putting it in a bowl of boiling water and it should open if it doesnt you need a new one
number 5 sounds a french problem again