Answer:
What has many keys but can't open a single lock?
You use a knife to slice my head but you weep beside me when I am dead
What has one eye but cannot see?
I always have to work with something in my eye. 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.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?