UnScramble this Word: i m r f o u n?

Questions

311 Got their name from a police code for what offense?

50 Easy: Hit for Geneisis which includes an exclamation point in the title?

50 Easy: It's a Sunday afternoon in this STP song.?

50 Easy: Of the 80 zillion rap versions of "Knockin' Boots," his was the most successful?

50 Easy: One could find "Alphabet St" on this Prince(or whatever he calls himself) album?