Good Riddles

Question: Two children are born in the same hospital, on the same year, on the same day, and have the same father and mother. But they are not twins.

How is this possible?

Question: Although I'm far from the point, I'm not a mistake.
I fix yours.

What am I?

Question: There were five men going to church and it started to rain. The four that ran got wet and the one that stood still stayed dry. Which one stayed dry?

Question: What goes round the house and in the house but never touches the house?

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