R1:

Alive without breath,
As cold as death;
Never thirsty, ever drinking,
All in mail never clinking

R2:

This thing all things devours:
Birds, beasts, trees, flowers;
Gnaws iron, bites steel;
Grinds hard stones to meal;
Slays king, ruins town,
And beats high mountain down.

R3:

No-legs lay on one-leg,
Two-legs sat near on three-legs,
Four-legs got some.

 

Answers:

R1: fish

R2:Time

R3:fish on a little table, man at table sitting on a stool, the cat has the bones