15 PigsMath brain teasers require computations to solve.
Your name is Cedrick, you're a Ukrainian farmer with 15 pigs. Being a poor farmer in this country, you are given strange laws to abide by.
1. You must have exactly 4 pens.
2. You must have an odd number of pigs in each pen.
How do you do it?
HintYou're a peaceful farmer. No killing or adding to your stash of pigs. It may seem like it's impossible, but really, it works.
AnswerPlace 5 pigs in each of three pens. Then put the fourth pen around the other 3. The fourth pen has all 15 pigs.
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