Answer:
Humans have two that shrink in the light and expand in the dark
It's shorter than the rest, but when you're happy, you raise it up like it's the best. What is it?
What's that 7 letter word with thousands of letters in it?
What never asks questions but is often answered?
Without coolant, you'll have some trouble with this.
I am a animal that is cute but dangerous, what am I?