Dear youngsters, could you answer the following questions.

1.    Mr. Smith has 4 daughters. Each of his daughters has a brother. How many children does Mr. Smith have?
2.    20 people jump into an empty swimming pool but 24 heads come up. How did this happen?
3.    During what month do people sleep the least?
4.    What jumps higher than a building?
5.    What has 4 fingers and a thumb, but is not living?  
6.    What is so delicate that even mentioning it breaks it?

Answers to last week questions:

1.    Shadow
2.    River
3.    Billiard Table
4.    Red Paint
5.    Seven
6.    Onion