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> Logic> Probability> Shapes (1)> General
> Numbers (1)> Games> Paradoxes> Riddles
> Just Math> Science> Algorithms
If Bill’s age in years is appended to Alice’s age, the resultant four digit integer is a perfect square.

The same thing will be true thirteen years from now. What are Bill’s and Alice’s ages?

(No Solution Yet, 2 Comments) Submitted on 2025-01-26 by K Sengupta   
Difficulty: 2 of 5 Bonus: Third Squared (in Shapes) Rating: 4.25
Given a square piece of paper, show how by creasing and folding only, a square of one third the area of the original can be obtained.
(Solution Posted, 7 Comments) Submitted on 2004-09-15 by Jer   
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