How many squares on a chessboard?

Category: 
Correct Answers: 
28
Points: 
1

Calculate the number 463

NUMBERMANIA: Calculate the number 463 using numbers [1, 4, 5, 5, 74, 414] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Category: 
Correct Answers: 
3
Points: 
8

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: 
3
Points: 
8

What is hidden in 3D image?

Stereogram - 3D Image
Category: 
Correct Answers: 
36
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: 
3
Points: 
8
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