New riddles

Sally and her younger brother were fighting. Their mother was tired of the fighting, and decided to punish them by making them stand on the same piece of newspaper in such a way that they couldn't touch each other. How did she accomplish this?

Dogs have fleas. What do sheep have?

How could you give someone $63 using six bills without using one dollar bills?

What is a worm that does not wriggle?

Why does the sea twinkle?

The digits 0-9(0,1,2,3,4,5,6,7,8,9) can be rearranged into 3628800 distinct 10 digits numbers. How many of these numbers are prime?

I know a number which when multiplied by multiple of 9 i.e 9 18 27 36 45 ... The output consist of number containing only one digit. Can you identify the number?

I have a little tail. My nose is called a snout. I live on a farm. I can say, "Oink-oink" I am a...

I have four legs. I'm very smart and I like to play. I like to smell things. I can wag my tail. I am a..

I live in the ocean. I have eight legs, two big claws and a tail. My body has a hard shell. I eat anything I can find. I am a...