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Time of Birth

A woman was born in a year that was a square number, lived a square number of years and died in a year that was also a square number. When was she born?

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Square Routes

How many four digit square numbers are composed of even numerals? What four digit square numbers can be reversed and become the square of another number?

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Digat

What is the value of the digit A in the sum below: [3(230 + A)]^2 = 49280A

Sticky Numbers

Stage: 3 Challenge Level: Challenge Level:1
Are there any numbers which can only link to one other number?
Where will you need to place these in your list?