My eyes kinda hurt from that elephant one...that confused me alot but i am guessing there are 4 legs... And i also got the first question wrong...dunno how that works out lol, might try it out on a calulator^^
The elephant is a pretty old one. It should only have 4 legs but it's just drawn so that the foot is behind the leg so it appears to have 8. It's a really good optical illusion. As for the addition question, I got 4100 in my head as well. Not so hard.. was it meant to be?
