Questions I am asked

Here are some questions that I have faced recently:

1. How were Grandma and Grandad formed?
2. Why do you need to learn?
3. What happens when you bump into a girl and you are a girl?
4. In the old-fashioned days, did they have leg holes for babies to put their legs through?
And my favourite...
5. Does Darth Vader wear black nail polish?

The answer to number five?

"Well, I don't know if he wears nail polish, but if he did, I'm sure it would be black".