Five Songs I Can't Identify

Hello all, hoping you folks can give me a hand on this. I've had these songs for almost a decade and have never been able to find out what they were called. They were given to me by a friend who got them from another friend when we were in high school, it's been a mystery since then. No music identifying software I have used has been able to put a name to them, so you guys and gals are my last hope. I cut them down to about a minute each and tried to get the main parts of the song in the cuts, hopefully it's enough for somebody out there to identify. If you can figure these out, I'll be eternally grateful.