Answer:
What has three ways out and just one way in?
Not a burden for its weight and daily carried out, He who takes it wishes it had never come about
A hole in a pole, though I fill a hole in white. I'm used more by the day, and less by the night.
An iron horse with a flaxen tail. The faster the horse runs, the shorter his tail becomes.
With head without hair. With mouth without tooth.
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.