I haven't seen a Radiohead thread (Radiothread) in a while so I thought I'd keep the ball rolling.
I've been trying to come up with a list for ages and I've just cracked it (kinda);

1. 2+2=5
2. Exit Music (For a Film)
3. Paranoid Android
4. You and Whose Army
=5. How to Disappear Completely
=5. Life in a Glass House

See if you can do better than me and actually whittle it down to only five tracks. Good luck!