Answer:
I am bought by the yard but worn by the foot
Who is your mother's only sister's son's brother's aunt's daughter's sister's father?
Though I am only two words I have thousands of letters in me
I am all around you, but you cannot see me. I have no throat, but you can hear me. Valued during summer but despised in the winter. What am I?
I have no voice but I can teach you all there is to know. I have spines and hinges but I am not a door. Once I’ve told you all I cannot tell you more.
A leathery snake, with a stinging bite. I'll stay coiled up, unless I must fight.