I m a quiz master then by ur saying i m also the host of the show and if tpic is sound then i would start saying something about the sound which we hear how do we gear what are its parts telling about wherever actually here it from and would just take a test i mean to  say listening test r skills i would ask from what i have told i would first prepare all the words i m going to speak. and then i would prepare questions and ask them.
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If your are said to be a quiz conductor for a show I think the beginning of the show you should first introduce yourself and then ask as many riddles as you know and you can also add this riddle too--

Which is a key but can open no door ???
The answer is Monkey