Answer:
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead. What am I?
I go in hard come out soft. Blow me hard and I’ll make a pop.
Squeeze me and I cry tears as red as my flesh but my heart is made of stone.
I'm white and I'm used for cutting and grinding. When I'm damaged people usually remove me. What am I?
What breaks when you say its name?
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.