Are you smart enough to solve this math problem?

SuperMarioJ
Thu, 15 Jan 2009 22:45:00 +0000

I think I found the solution for number Q2. Imagine the donut shaped figure.
here
http://i325.■■■■■■■■■■■■■■■/albums/k372/suatkilic/wierdquestion.jpg
Q4 is already answered by thiscouldbeheavn