# Number Puzzles Questions and Answers

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### Answer & Explanation:

Answer : 6

Explanation :

On each row, add the values of the left hand and central boxes to give the value in the right hand box.

### Answer & Explanation:

Answer : 10

Explanation :

In each star diagram, the number in the centre equals the sum of the top three numbers, subtracting the sum of the bottom two numbers.

### Answer & Explanation:

Answer : 23

Explanation :

Starting top left, and moving down in columns from left to right, the numbers follow the sequence of Prime Numbers from 2 to 23.

### Answer & Explanation:

Answer : 10

Explanation :

Numbers in the segments of the left hand circle equal the difference between numbers in corresponding segments of the two right hand circles.

### Answer & Explanation:

Answer : 1 143

Explanation :

Starting with the top 3 digit number, the first digit increases by 2 as you descend, from 1 to 11. The middle digit decreases by 1 each time, and the right hand digit alternates between 5 and 3.

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