Answer:
Curtail me thrice I am a youth; behead me once a snake; complete I'm often used in truth when certain steps you'd take.
I run smoother than any rhyme, I love to fall but cannot climb. What am I?
What type of house weighs the least?
I am a million peopleβs wakeup call
Keep doing me to avoid lens dryness
As round as an apple. As deep as a cup. All the king's horses can't pull it up.