What Am I Riddles

Question: Different lights make me strange,
for each one my size will change.

What am I?

Question: I'm red, blue, purple and green.
No one can reach me, not even the queen.

What am I?

Question: I cannot hear or even see,
but sense light and sounds there may be.
Sometimes I end up on the hook,
or even deep into a book.

What am I?

Question: Everyday I stalk you all day long,
With every move you make, I never make one wrong.
I vanish twice a day with the sun's height and fall,
I will follow you anywhere,
even the bathroom stall.

What am I?

Question: I live off of a busy street,
if you want you can stay for an hour or two,
but if you don't pay rent I'll tell on you.

What am I?