Logic Riddles

Question: There was a green house.Inside the green house, there was a white house.Inside the white house, there was a red house. Inside the red house, there were black babies. What Am I?

Question: How does Halloween come before Valentine's day?

Question: A man goes down to the beach and starts walking on the beach, he has to get to the circus in a hurry and so he practices his act on the way, even though he had walked for an hour his feet weren't the least bit tired, why?

Question: Two people are born at the same moment, but they don't have the same birthdays.

How could this be?

Question: Change a long pause into a short one by doubling a letter.What are the words?