Riddle: I am smooth and silent, though I make things clear. I…

Riddle

i-measure-much-yet-have-no-weight-and-scale-the-heights

Riddle

i-am-a-dance-of-photons-quick-as-a-thought-invisible-to

Riddle

what-runs-around-the-clock-but-never-leaves-the-room

Riddle

i-have-keys-but-open-no-locks-i-have-strings-but-im-not

Riddle

what-dances-in-the-day-yet-hides-at-night-wears-a