3 : Through the route, plus the first letter letter, and bottle it (by Mithrandir)
4 : Potion Pot? (by Sconibulus) (contacted by Erik the Outgolfer)
79 : electrical wormhole? (by John Dvorak)
1' : +Company. (by Erik the Outgolfer)
71 : U2 song in which the band was standing in the middle of a large kinetic sculpture (by John Dvorak)