Answer:
I contain six letters, minus one and you got twelve. What am I?
In your fire you hear me scream creaking and whining yet I am dead before you lay me in your hearth.
Six letters it contains. Take away the last and only twelve remains. What is the word?
I am a box which holds keys but not locks. With the right combination, I may unlock your soul. What am I?
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.
Strip the skin under my skin, and my flesh you'll reveal. It tastes sweet and tart, now throw out the peel. What is it?