A simple mathematical logic says –

odd + odd = even

odd + even = odd

even + odd = odd

even + even = even

Now since you know this have a look at the small riddle below –

A friend of mine runs a small poultry farm in Bangalore. She took me round to see the place. I counted the number of chickens. There were 27 of them. And there were 4 enclosures. I noticed that in each enclosure there were an odd number of chickens.

Can you tell how many there were in each enclosure?

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