Riddle: What has a head, a tail, is brown, and has no legs?

Riddle

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

Riddle

i-dance-without-feet-whisper-without-a-voice-embrace

Riddle

i-can-be-seen-in-every-hue-yet-when-im-full-im-out-of

Riddle

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

Riddle

i-am-often-as-silent-as-a-mouse-yet-i-sing-loudly-in