Answer:
Iโm where yesterday follows today. And tomorrowโs in the middle. What am I?
Every night I'm told what to do, and each morning I do what I'm told. But I still don't escape your scold. What am I?
I lose my head in the morning and regain back it at night.
I am a precious stone, as clear as a diamond. Though you can walk on water with my power, try to keep me, and I'll vanish in an hour. What am I?
I will disappear every time you say my name. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.