mixed bag

noun

A collection of various things: assortment, conglomeration, gallimaufry, hodgepodge, jumble, medley, mélange, miscellany, mishmash, mixture, olio, patchwork, potpourri, salmagundi, variety. Slang grab bag. See collect/distribute.

A heterogeneous collection of people, items, activities, or the like; an assortment. For example, The school offers a mixed bag of after-school activities--team sports, band practice, a language class. This idiom calls up the image of a sack full of different items. [First half of 1900s]

(DOD, NATO) In naval mine warfare, a collection of mines of various types, firing systems, sensitivities, arming delays and ship counter settings.

The noun has one meaning:

Meaning #1: a collection containing a variety of sorts of things
  Synonyms: assortment, mixture, miscellany, miscellanea, salmagundi, variety, potpourri, motley