Logic Riddles

Question: Is an older one-hundred dollar bill worth more than a newer one?

Question: You are surrounded by a 100 foot wide and 100 foot deep moat. You have a 40 foot tall ladder, matches, a gallon of water, and as much rope as you need.

How can you get across the moat?

Question: When angry it turns red, cold it turns blue and pale when scared.

Question: I was crucified to keep murders out of the maze. What am I?

Question: what goes down but never goes up?