Can I have a volunteer?" One blonde steps up. The compere says to her "What is 15 plus 15?" After 15 or 20 seconds she says "Eighteen." Obviously everyone is a little disappointed. Then 80,000 blondes start cheering "Give her another chance, give her another chance." The compere says "Well since we've gone to the trouble of getting 80,000 of you here and the world wide press, I guess we can give her another chance." 

So he says "What is 5 plus 5?" After nearly 30 seconds she eventually says "Ninety?" The compere sighs - everyone is crestfallen and the blonde starts crying and 80,000 girls start yelling "Give her another chance, give her another chance." 

The compere, unsure whether or not he is doing more harm than damage, eventually says "Ok! One more chance. What is 2 plus 2?" The girl closes her eyes and after a whole minute eventually says "Four." Around the stadium 80,000 girls start yelling "Give her another chance, give her another chance."