Answer:
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.
I am whole but incomplete. I have no eyes, yet I see. My largest part is one fourth of what I once was. What am I?
I lose my head in the morning and regain back it at night.
When the clock has no angle, I will own yesterday, tomorrow and tonight. What am I?
What is an astronaut’s favorite key on a keyboard?
What’s a carpet’s favorite sport?
What am I?
Animal
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Logic