1. You need 7 weigh ins, because if you have 8 donuts and you put one of them on the scale and compare it to every other donut to the one on the scale you will be able to find out which one is the heavy donut.
2. You have the same chances as when you rolled on your first time 1/36
3. If you have the pennies set up in a pyramid (4 on the bottom then 3 then 2 then 1.) Take the top two that contains two pennies and 1 penny at the top and put it on the bottom so that the pyramid is reversed. So that way instead of it facing up, it would face down.
4. There's at least 1 white tile, but many other tiles.
5. 48 games must be played and there is an extra team because it is an odd number.
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