Brain Teaser 12 Answer

Answer:

This is a thinking outside the box type of brain teaser which is pretty simple to get since you can quickly see that it is not possible to distribute the balls in a conventional manner within the given parameters. The answer is to use some combination of putting bags inside of other bags. So you could put 5 balls in bag #1, 3 balls in bag #2, 1 ball in bag #3 then put bag #3 inside of bag #4. Another option would be to put all the bags inside each other then put all 9 of the balls inside.