Calculate the number 6650

NUMBERMANIA: Calculate the number 6650 using numbers [7, 7, 4, 3, 21, 922] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
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Correct Answers: 
4
Points: 
7

What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
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Correct Answers: 
4
Points: 
7

Calculate 9*(29+321+151)

FUNNY MATH: Calculate 9*(29+321+151) :)
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Correct Answers: 
2
Points: 
9

What hides this 3D image?

Stereogram - 3D Image
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Correct Answers: 
68
Points: 
1

Which is a winning combination of digits?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.
Category: 
Correct Answers: 
0
Points: 
10
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