# Number Puzzles Questions and Answers Home > Reasoning and Puzzles > Number Puzzles > Number Puzzles Questions  A. 8
B. 6
C. 4
D. 2

Explanation :

In each row of the diagram, the sum of the left and right hand digits, minus the central digit is always 8.  A. 11
B. 15
C. 8
D. 7

Explanation :

Divide the circle, horizontally and vertically, to give 4 quarters.

The sum of the numbers in the segments of each quarter equals 11.   A. 8
B. 3
C. 1
D. 6

Explanation :

Working through the diagram in rows, and reading each row as a whole number, the diagram represents a subtraction sum : 203 - 7 = 196  A. 56
B. 45
C. 39
D. 33

Explanation :

Moving from left to right, add 6 to the first number to get the next one along, then 8, 10 and 12 to complete the sequence.  A. 12
B. 9
C. 16
D. 7

Explanation :

Starting with the top left number, and working down one row at a time, alternating between left and right, double the number each time.

Repeat this sequence, starting with the top right number.  #### Sudoku

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