4: A ninja.
1. wets toothbrush 2. puts toothpaste on toothbrush 3. wets toothbrush again 4. does backflip on to huge pile of money
4 no 5 no 6 no its really 4 - not sure, better flip a coin to get the right number
I reckon that fence is around a yard.
Because it's supposed to be the Fantastic Four, not the Fantastic Fo'!