Which family does mustard belong to?

Cruciferae (Brassicaceae) differ from Malvaceae in the presence of:

$A$ flower characterized by monadelphous stamens is associated with the family ..........

$A$ dorsifixed and monothecous anther is a characteristic feature of which family?

$A$ distinct feature of the flowers of $Liliaceae$ is . . . . . . .

In the $Fabaceae$ (Papilionoideae) family,the $5$ petals form a distinct arrangement involving $3$ different types of elements: the standard (vexillum),wings (alae),and keel (carina). What is the number of these elements respectively?