Right, i remembered this thread from a while ago, so i decided to post some new problems up
Number 1

given that the rectangle is 2x4, find the radius
Number 2
Divide $261 (in whole $ increments) into a number of bags so that I can ask for any amount between $1 and $261, and you can give me the proper amount by giving me a certain number of these bags without opening them. What is the minimum number of bags you will require?
When i get around to it i'll add a couple more