Answer:
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.
A red drum which sounds without being touched, and grows silent, when it is touched.
I am always in front of you, but you will never see me. What am I?
What is it that was given to you, belongs only to you. And yet your friends use it more than you do?
You'll see savory dishes in Hong Kong sizzling in these.
How can you add eight 6s together so that the total adds up to 750?