Answer:
I build up castles. I tear down mountains. I make some men blind, I help others to see. What am I?
I cannot be burned in fire or drowned in water
I am round. I have only one line. Circle is not my name indeed. What am I?
I touch the Earth, I touch the sky, but if I touch you, you’ll likely die. What am I?
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
When is it bad luck to see a black cat?
What am I?
Animal
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Food
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Logic