Answer:
I am a nut with a hole
By myself, I'm practically nothing. Worthless as a leader, but when I follow a group, their strength increases tenfold. What am I?
The last woman on Earth received a phone call. Who was the caller?
I am a bow that can never be tied or broken but can disappear. What am I?
If a man carried my burden, he would break his back. I am not big but leave silver in my tracks. What am I?
Why was the cook arrested?