French language Q&A Forum

I found a sentence "Voyons ce qu’a fait Caillou aujourd’hui."

I wonder why it is not "Voyons ce que Caillou a fait aujourd’hui."

Vous ________ tôt ce soir-là.

You had gone to bed early that night.

HINT: Conjugate "se coucher" in Le Plus-que-Parfait

Answer: vous étiez couchés

'mais je suis aussi content parce que je vais revoir mon ami Thomas.'

Should it be "mais je suis aussi contente"?

In English there's a slight difference in meaning between I don't mind, which is a neutral expression of indifference and I don't care, which is a more negative expression.  Which of these is Ça m'est égal closest to? 

I came across this sentence in a French text book.  " Elle m'a beaucoup aidée quand je suis arrivée ici."  The speaker was female. Why is there agreement of aidée when the auxillary is avoir? Also is arrivée  agreed as the clause uses etre?  Thanks in advance.