1. How many tourists are staying at this camp?

2. When did they arrive: today or a few days ago?

3. How did they get here?

4. Is there a town nearby?

5. Where does the wind blow from: north or south?

6. What time of day is it?

7. Where did Alex go?

8. Who was on duty yesterday?

9. What date is it today? 

Answer:
http://www.dailymail.co.uk/femail/article-3522717/Can-spot-s-inside-red-circle-Optical-illusion-sight-test-hidden-image-leaves-internet-baffled.html