I think things like this are cool! Like the famous one where some people see a young beautiful lady and others see an old, tired looking woman.
Anyway here they are 
11 ships, 3 ships or 8 arches?
Faces or houses?
Can you see 7 horses?
Whole bodied people or just faces?
Is it a ring?
A picture or a puzzle?
How many people can you see?
Look at the middle column. Where does it end?
How many deer can you see?
Can you see 4 people?
Who is the tallest?
A face or a word?
The word could be read as liar if you see it.
Can you see the word lift?
