Tricky Tuesday

Hello, all!

On Tuesdays, I will post a riddle.  The next Tuesday I will give the answer and then post another riddle! I won't reply to the comments saying they are right or wrong, but the people who guess right, I will post your name(s) on on the next "Tricky Tuesday" post!

Have fun guessing! :D

What can run, but never walks,

has a mouth, but never talks,

has a head, but never weeps,

has a bed, but never sleeps?

Enjoy!

*~Joy~*