Find the area of the shaded figure

Express result to the accuracy of 2 decimal.
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Correct Answers: 
17
Points: 
1

What is hidden in the stereogram?

Stereogram - 3D Image
Category: 
Correct Answers: 
45
Points: 
1

Who is the mysterious person behind the glass?

Who is the mysterious person behind the glass?
Category: 
Correct Answers: 
17
Points: 
1

What number comes next?

Look at the series (1,9,5,49,11,169,17), determine the pattern, and find the value of the next number!
Category: 
Correct Answers: 
37
Points: 
1
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