Win tickets to the olympics in China

WIN 2 TICKETS ALL EXPENSES PAID INCLUDING AIR FARES TO THE 2008 OLYMPIC GAMES IN BEIJING, CHINA.

To participate is very easy, just view the attached photo, correctly
answer the following questions and send your answers to:
International Olympic Committee, Private Bag, Lausanne, Switzerland.

1. Which student seems to appear tired / sleepy?
2. Which ones are male twins?
3. Which ones are the female twins?
4. How many women are in the group?
5. Which one is the teacher?

Good Luck!