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.
The more you take away from me the bigger I shall get.
I'm tall when I'm young and I'm short when I'm old. What am I?
I am so delicate that even mentioning me breaks me. What am I?
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see. What am I?
Which popular cheese is made backwards?
What am I?
Animal
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Easy
Food
Funny
Kids
Logic