While travelling down a road in a socialist country you meet a group of four young men and women sitting in the front porch of their house, with a lively cattle ranch adjoining.
"Our father died, and he willed distinct unit fractions of that ranch's cows to each of us four, none less than $\frac19$," one of them explains. "Initially we were at a loss as to executing the will, particularly because it prohibits slaughtering any cow. But now that you've come, we can divide the cows exactly as per the will, none left over – if you will help us."
"Why me?" you ask in slight confusion.
"Emphasis on the you," another one of the quartet retorts with a sly smile.
You look at the ranch and figure that there are between 80 and 100 cows. How many cows are there and how will they be distributed among the four children?
No cows are harmed or unused in the solution!