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.
Category: 
Correct Answers: 
6
Points: 
9

Calculate the number 6023

NUMBERMANIA: Calculate the number 6023 using numbers [4, 6, 5, 7, 21, 825] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Category: 
Correct Answers: 
0
Points: 
10

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.
Category: 
Correct Answers: 
53
Points: 
1

What number comes next?

Look at the series, determine the pattern, and find the value of the unknown number!
Category: 
Correct Answers: 
25
Points: 
1
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