One day, a scientist set out to prove false the myth that blondes aren’t really intelligent. To prove his theory he gathered a huge convention of blondes. Among the women in the crowd, he selected one and started questioning her.
«What is 12×11?»

«120?»

«Give her another chance!» shouted the crowd.

Once more, the scientist asked, «What is 6×4?»

«25?»

«Give her another chance!» shouted the throng.

For the last time, the scientist asked, «What is 2+2?»

«4?» the blonde dared to ask.

«Give her another chance!» shouted the crowd.