Try this!

[Dude111]

Albert Einstien made this and said 98% of people COULDNT SOLVE IT!

http://web.archive.org/web/20041012223623/http://quantnotes.com/edutainment/hard/einstein.htm

I didnt get it :(

[progers]

I solved it years ago but it took me a few hours

[Zing]

I argue the fact that the question is worded in such a way actually no one could own the fish and the German for all we know could own a chimpanzee

[Kymmy]

Very crap problem as you have to assume things, for instance are the houses in a line as any other layout would totally change the answer

[Dude111]

Yes assumption is the key indeed!!

Another friend of mine (Who is a cancer) got it right! (I FIGURED HE WOULD)

He said it was unusual for him to get something like that right (I guess he used logical thinking in it)

[nomadking]

You just have to approach it like a Sudoku puzzle. Progressively filling in the blanks based on the starting position and the rules/restrictions.

[Dude111]

Isnt Sudoku THE STUPIDIST THING TO EVER COME OUT??

Its so easy its not funny......

[Stephen]

Yet another ancient website from 2004. Are you stuck in a time warp? lol