Answer:
I make things short but I am pretty long myself
I am often sold by children entrepreneurs in summer time
When you take away the whole from me there is always some left.
A necessity to some a treasure to many I'm best enjoyed among pleasant company. Some like me hot some like me cold. Some prefer mild some like me bold.
I am clean when Iām black dirty when Iām white.
The answer I give is yes, but what I mean is no. What was the question?