How much do Mordekai's students pay to get their ears pierced?

A buck-an-ear.(hehehe,Mordekai knows the guy,they get a discount....)

One day in the spiral while walking in Avery's court as a witchdoctor with a fellow witchdoctor. Madam Vadima invited me and a friend to give a vision of an up coming event.

Me as a witchdoctor-It's seems the crystal ball is foggy.
Vadima- I'm not sure why crystal ball is foggy.
Me as a witchdoctor-Strange i always got a bright vision.
Vadima- Maybe ask your friend there.
Me as a witchdoctor- Why my vision is foggy ?
A witchdoctor friend-Oops, did I made it foggy ? ( S/he was breathing too close at the crystal ball )
Vadima- Oh that's was causing it to be foggy.

What do call a box that is transparent ?

The ghost of Christmas present.

What direction my compass pointing at a star on my way to polaris ?

The North Star

Hope you enjoyed volume 3 of my joke.