French language Q&A Forum

Plural subject (nous), a single (non-paired) body part for each person: why the singular for the body parts (la tête) and not plural? "Nous nous grattons la tête"

The text begins with present tense, but then why is it l'imparfait, when they are discussing menu. I didn't understand the reason behind it. 

Hi,  my kwizbot it is telling my that in this example,”Cette maison est bien. - Oui, elle est ________ l'autre.” 

the correct answe is “mieux.” Why? Doesn’t mieux modify a verb? Here were modifying a noun (maison), so it should be “meilleur” by all logic, so why is the correct answer “mieux”? 

celles qui vous enrichissent et vous font chaud au cœur.

Do we not repeat the qui 

celles qui vous enrichissent et *qui* vous font chaud au cœur

In the sentence "Est-ce que cette table vous convient ? " why is convient correct and its not convenez please?

I’m not familiar with the rule of ‘re’ bring added to ‘grossir’ in order to say someone is doing something again.  Is this a general rule?