Solutions:

#1: 22

#2: CUP

#3: Roads? Where we’re going, we don’t need roads.

#4: 64Mustang

#5: Star, Christmas Tree, Rainbow

#6: Hole in 1?

#7: Prof. Plum with the Plutonium Rod in Burn’s Manor

Mrs. White (Josh - Bill's Right), Mrs. Scarlett (Alia - Across From Bill), Mr. Green (Brielle - Bill's Left)

Final Lock Combo: 481163