Answer:
I am a king but also a common device of measure. What am I?
What calls for help, when written in capital letters, is the same forwards, backwards and upside down?
Passed from father to son and shared between brothers, its importance is unquestioned though it is used more by others.
What is always coming every day, but never arrives until the next?
Often wandering the streets, this group of people cannot afford to be choosers.
If you count 20 houses on your right going to the store and 20 houses on your left coming home, how many houses did you count?