Decrypt the map

PUZZLE: Decrypt the map!
Category: 
Correct Answers: 
1
Points: 
10

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: 
4
Points: 
7

What number comes next?

Look at the series (2378, 4994, 6116), determine the pattern, and find the value of the next number!
Category: 
Correct Answers: 
25
Points: 
1

Calculate the number 250

NUMBERMANIA: Calculate the number 250 using numbers [2, 5, 1, 7, 57, 138] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Category: 
Correct Answers: 
2
Points: 
9

Calculate the number 3536

NUMBERMANIA: Calculate the number 3536 using numbers [1, 3, 4, 4, 72, 859] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Category: 
Correct Answers: 
0
Points: 
10
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