Riddles!

What’s full of paper, but has no pen,

Sometimes green and sometimes brown.

What’s full of growth, but also of death,

Sometimes loud and sometimes never makes a sound.

(Forest)

What’s carefully measured, but also measures others,

And comes in many colors.

What’s hard, but also soft,

And is marked or raised all over.

(Ruler)

What’s as dark as a shadow, yet as bright as the sun,

Never hot, but never cold.

What’s full, but empty,

Always changing, but never moving.

(Galaxy)