Answer:
I am clean when Iām black dirty when Iām white.
What do you call a sleeping bull?
hide me from your parents if you have done bad academically this year.
I am of several different kinds, but the one you pick doesn't do its job. What am I?
What loses its head in the morning but gets it back at night?
The answer I give is yes, but what I mean is no. What was the question?