# Number Puzzles Questions and Answers

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### Answer & Explanation:

Answer : 6

Explanation :

Looking at the diagram in rows, the central circle equals half the sum of the numbers in the other circles to the left and right of the centre.

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### Answer & Explanation:

Answer : 9

Explanation :

The number at the centre of each triangle equals the sum of the lower two numbers minus the top number.

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### Answer & Explanation:

Answer : 19

Explanation :

As you move diagonally down, numbers follow the sequence of Prime Numbers.

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### Answer & Explanation:

Answer : 16

Explanation :

Starting bottom left and moving clockwise around the triangle, numbers follow the sequence of Square Numbers.

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### Answer & Explanation:

Answer : 39

Explanation :

Working from top to bottom, double each number and subtract 1, then 2, then 3 etc.

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