A little piece of advice:
If you're stupid, don't call in for radio quiz shows.
As a general rule, the questions on radio quiz shows aren't very difficult, but stupid people will still not know the answer. When a stupid person phones in and gets an easy question wrong it just pisses the rest of us off, because you've wasted someone else's chance of winning that prize (however meager it may have been).
If you don't know the difference between the pyramids and stonehenge, maybe you shouldn't phone in for a quiz show about famous tourist destinations. Maybe you should spend that time reading a goddam book instead.
Instead of leaving your DSTV permanently tuned to E! or goddam Supersport 75, maybe you should watch a little Discovery Channel from time to time... just have it on in the background.
If that doesn't appeal to you, then kindly refrain from calling in to radio quiz shows. You don't see fat people trying to win the Comrades do you? No. Because they would just embarrass themselves. The same goes for you and quizzes... don't bother, okay? Leave it to the brainy folk rather.