Answer:
I am milky white and scares people.
When you take away the whole from me there is always some left.
Kings and queens may cling to power and the jester's got his call. But as you may discover the common one outranks them all. What am I?
What has a head and a tail but no body?
Born of sorrow, grow with age, you need a lot of me to be a sage. What am I?
I have feet on my head