Greetings everyone!
quisque, quidque is a pronoun meaning each/every and is declined like quis, quid except that quicque may appear in the nom/acc. of the neuter. A question arises: What is the nominative masculine singular of the adjective form? Mooreland and Fleischer says the adjective form would be quique, quaeque, quodque. I have found at two authorities say that quisque, quaeque, quodque is correct.
http://www.orbilat.com/Languages/Latin/Vocabulary/Latin_Function_Words.html