1) Ever seen a c one?

The International Obfuscated C Code Contest has a few. The most recent "best one-liner" is schweikh.c:

main(int c,char**v){return!m(v[1],v[2]);}m(char*s,char*t){return*t-42?
+*s?63==*t|*s==*t&&m(s+1,t+1):!*t:m(s,t+1)||*s&&m(s+1,t);}
[download]