Logic Riddles

Question: A man was looking at a picture. While staring at the picture he said, brothers and sisters I have none but this man's father is my father's son. Who is in the picture?

Question: Two men come before the king because one of their beloved pets has been claimed by the other. Both of these men claim that the same cow is theirs. The king declares that one of the men will get the cow and he will give the other man one of his cattle, just to be fair. He will decide which man gets which at random. One of the men thanks the king for his generosity but the other man does not accept the offer. One man leaves with the disputed cow.

Which man gets the cow?

Question: Two men find an old gold coin and want to have a coin toss with it to decide who gets it. The only problem is the coin is heavier on one side so it comes up heads more than tails. What is a fair way for the men to toss the coin and decide who gets the coin?

Question: If a farmer has 5 chickens, two horses, and a wife.

How many feet are on his farm?

Question: You find me behind the stars; or in a sixth, seventh, or third.
It takes something round, a computer, and me to make pie.
I am bigger than anything you can think of.

What am I?