Yes, that's it, Kris and übereil. I absolutely love this riddle, because it is so simpel and if you get the idea you are instantly sure that that must be the solution. It made me laugh out loud when I finally got it.
Maybe someone wants to continue asking and guessing?
And does anyone want to pose another one? I like guessing, too <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" /> - but I am afraid I already know most of them.
Der Mensch ist das edelste Lebewesen. - Das erweist sich schon daraus, dass ihm noch kein anderes widersprochen hat.
(G.C. Lichtenberg)