haskell brain damage cancer invades scheme*

http://blog.racket-lang.org/2007/11/getting-rid-of-set-car-and-set-cdr.html

(* depr derp we're not "scheme" anymore... i know)

>>47
Most Lisps are unityped, C is multityped but with the ability to go untyped (which is not the same as unityped).

No.

Yes (you might need to change the speed and safety settings).