immortal they all taste of death."

Also in the following griphi, which are capable of receiving more than
one answer.

The first two are respectively by Eubulus and Alexis--writers of the
"New Comedy"--who flourished in the first half of the 4th century,
B.C.

"I know a thing, which while it's young is heavy,
But when it's old, though void of wings, can fly,
With lightest motion out of sight of earth.

"It is not mortal or immortal either
But as it were compounded of the two,
So that it neither lives the life of man
Nor yet of god, but is incessantly
New born again, and then again
Of this its present life invisible,
Yet it is known and recognised by all."

From Hermippus:--

"There are two sisters, one of whom brings forth,
The other and in turn becomes her daughter."

Diphilus, in his Theseus, says, there were once three Samian damsels,
who on the day of the festival of Adonis delighted themselves with
riddles. One of them proposed, "What is the strongest of all things?"
Another answered, "Iron, because it is that with which men dig and cut."