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 do you call a sleeping bull?
I am pronounced as one letter written with three. I come in blue black brown or grey. Reverse me and I read the same either way.
I am used for light yet I am solid. Without me you would feel enclosed. I hate being touched especially with a lot of force. I like to be in buildings.
I am a word. I become longer when the third letter is removed.
I am your mother's brother's only brother in law. Who am I?