Fri 20 Jun, 2008 08:15 pm - Thanks anyway guys!
I also think, and am 99% sure that it can´t be done. I have also tried it and I can get the weight in 4 Weighings, not in three (it´s imppossible), or how markr... (view)
Thu 19 Jun, 2008 10:32 pm - I need the answer for this riddle (if there is one). A teacher from my University gave it to us and it´s similar to the 12-ball riddle. The riddle is like this:
You have 21 small balls.... (view)