Answer:
I am a busy worker who is a water mammal.
Fatherless and motherless. I was born without sin. Roared when I came into the world, but I never spoke again. What am I?
Some will use me, others not. Some have remembered, others forgot. For profit or gain, I'm used expertly. I can't be picked off the ground or tossed into the sea. What am I?
What is easy to get into but hard to get out of?
What language does a billboard speak?
Why was the cook arrested?