161.
If Indians carried off a third of a flock and a third of a sheep, and others took a fourth of the remainder and a fourth of a sheep, and others a fifth of the rest and three-fifths of a sheep, and there were then 409 left, the full flock was 1025 sheep.
162.
When a cistern which held fifty-three gallons was filled by three boys, A bringing a pint every three minutes, B a quart every five minutes, and C a gallon every seven minutes, it took 230 minutes to fill it, and B poured in the final quart, A and C coming up one minute too late to contribute at the last.
163.
A man who said, late in the last century, that his age then was the square root of the year in which he was born, was speaking in the year 1892.