Funny Riddles

Question: If it takes three men two days to dig a hole, how long does it take one man to dig half of a hole?

Question: If you have two twins, three triplets and four quadruplets; how many people do you have?

Question: how do cows count?

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: If a pirate was to join the military, what branch of the armed service would they probably go in to?