David Bowie's test of wit!!

Hi i'm David Bowie, wanna find out if your funny or not, perhapps its little wonder that your humor is out of fasion. I can't help you. I move the stars for no one.

1 What is the funniest object here?
2 If the wood mines were to re-open (The wood mines are underground shafts where tree roots are mined for their special wood in horrible conditions) who would it be funniest to send down into them to work?
3 what is the best form of joke?
4 It would be funniest if what happened..............
5 Who is the funniest character from the list below?