Good Riddles

Question: When is homework not homework?

Question: How do you share 34 apples among 33 people?

Question: I have all of your knowledge but could fit in your hands.

What am I?

Question: I join you in battle, fist clenched tight.
We pound three times with all our might.
If my rival decides he will sign for peace;
I'll crush him, and the fight will cease.
But if he lays his hand down flat;
I'll suffer defeat, that is that.

What am I?

Question: I build bridges of silver and crowns of gold.Who am I?