"Challenge for Observer !"
in above picture are 11 human faces. Can You Find Them All ?
If you can find 4 or 5 , you are normal people
If you can find 8 , you have a extraordinary sense of observation.
If you can find 9 , you have a extraordinary sense of observation above of the average
If you can find 10 , you are very observer
If you can find 11, you are extremely observer.