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Welcome to perplexus.info, flooble's perplexing puzzle portal. Here, we collect all sorts of puzzles, from simple logic questions and word tricks to in-depth math problems like probability and geometry. Click around and see if your brain is up to the task! If you're new here, make sure you sign up so that you can leave comments and submit your own problems!
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> Just Math (5)> Science> Algorithms
Difficulty: 2 of 5 Latest: m & n (in Just Math)
Let m and n be integers each less than 2014.
Determine the maximum value of m^3+n^3 fulfilling the equation
(n^2 - mn - m^2)^2 = 1

(No Solution Yet, 1 Comments) Submitted on 2014-12-18 by Ady TZIDON   
Difficulty: 2 of 5 Bonus: The Tennis Tournament (in Numbers) Rating: 2.14
Another problem from the CBC website, this one submitted by Prof. Peter Rosenthal of the Mathematics Department of the University of Toronto:

This is a question about a tennis tournament. It's organized so that in each round players are randomly paired. If there is an odd number of players, the extra player sits out the round. Losers are all eliminated from the tournament. The rounds continue in the same way until there is only one person remaining, who becomes the champion. The question is: If there are X people who enter the tournament, how many matches will be played in the tournament?

(Solution Posted, 5 Comments) Submitted on 2002-06-13 by TomM   
Difficulty: 3 of 5Floor Fulfilment (in Just Math)
Posted on 2014-12-17 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 2 of 5Solve in integers (in Just Math)
Posted on 2014-12-17 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Power Sum Poser (in Just Math)
Posted on 2014-12-16 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 2 of 5Equation Exercise (in Just Math)
Posted on 2014-12-16 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Geometric and Harmonic Harmony (in Just Math) Rating: 5.00
Posted on 2014-12-15 by K Sengupta (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Cash and chit (in General)
Posted on 2014-12-15 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Extreme Cardioid Exercise (in Shapes)
Posted on 2014-12-14 by K Sengupta (No Solution Yet, 0 Comments)
Difficulty: 3 of 5Extreme Ellipse Exercise (in Shapes)
Posted on 2014-12-13 by K Sengupta (No Solution Yet, 0 Comments)
Difficulty: 3 of 5Cube Difference Deduction (in Just Math)
Posted on 2014-12-12 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 1 of 5Tic-tac-toe related (in Logic) Rating: 2.00
Posted on 2014-12-12 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Trigo inequality (in Just Math)
Posted on 2014-12-11 by Danish Ahmed Khan (No Solution Yet, 11 Comments)
Difficulty: 3 of 5Year Yearn 2 (in General)
Posted on 2014-12-11 by K Sengupta (No Solution Yet, 4 Comments)
Difficulty: 3 of 5Which is which (in Cryptography) Rating: 4.00
Posted on 2014-12-10 by Ady TZIDON (No Solution Yet, 9 Comments)
Difficulty: 2 of 5Eight distances (in Just Math) Rating: 4.00
Posted on 2014-12-10 by Ady TZIDON (No Solution Yet, 4 Comments)

Recently Posted Solutions:
Difficulty: 3 of 5One in Eight (in Cryptography)
Submitted By Charlie. Solution posted on 2014-12-17 17:33:37
Difficulty: 4 of 5Test #7 (in Word Problems)
Submitted By Ady TZIDON. Solution posted on 2014-12-07 16:04:19
Difficulty: 2 of 5Searching for c among the cubes (in Just Math)
Submitted By broll. Solution posted on 2014-11-30 00:11:11
Difficulty: 3 of 5Integers only (in Sequences)
Submitted By Ady TZIDON. Solution posted on 2014-11-26 02:59:02
Difficulty: 1 of 5Told by an integer (in Numbers)
Submitted By Ady TZIDON. Solution posted on 2014-11-26 02:43:00
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