Answer:
Can not be bought, Can not be sold, Even if it's made of gold. What is it?
The letter S is added to pluralise most words in the English language. eg. Letter to Letters Word to Words and Language to Languages. But I am a word that is pluralised with the addition of the letter C.
What can be drawn but never taken?
To cross the water, I'm the way. For water I'm above, I touch it not and truth to say, I neither swim nor move. What am I?
People see through me, but none pass through without killing me. I can be anywhere, and can be seen double or single. What am I?
When is it bad luck to see a black cat?