3 german to english phrases.

Sorry for all the threads, I just found this forum and have many questions. Thanks :)


i have 3 phrases that i need translated from english to german i think i have one figured out but im lost on the other two.

the first one is "slaves shall serve" which i think translates to sklaven sollen dienen

the second one is "whichever one i feed" the context would be if there were two things, one good and one evil and some one asked me which one will win, i would tell them "which ever one i feed"

and the third is " i know the pieces fit"

any help would be appreciated