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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!
> Logic (1)> Probability> Shapes (1)> General
> Numbers (2)> Games> Paradoxes> Riddles
> Just Math (1)> Science> Algorithms
Let ABC be a triangle with integral side lengths such that angle A=3 * angle B. Find the minimum value of its perimeter.
(No Solution Yet, 1 Comments) Submitted on 2023-12-08 by Danish Ahmed Khan   
Difficulty: 3 of 5 Bonus: The Dice Game (in Probability) Rating: 4.25
Three people, A,B,C play a game. A rolls the die.

Then, in order of "B,C,A,B,C,A..." they each roll the die. They keep going until someone wins. To win, you have to get the same number as the previous number rolled on the die. ( A can't win with his first roll because there was no roll before to compare it too.) What is the probability that each person will win?
(Solution Posted, 6 Comments) Submitted on 2003-11-10 by Gamer   
Difficulty: 2 of 5Maximum of divisor contraints (in Just Math)
Posted on 2023-12-07 by Danish Ahmed Khan (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Alternating Differences (in Numbers)
Posted on 2023-12-07 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Square Rearranger (in Numbers)
Posted on 2023-12-06 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Unlucky Horse (in Logic) Rating: 5.00
Posted on 2023-12-06 by K Sengupta (Solution Posted, 0 Comments)
Difficulty: 3 of 5Clue+2=New (in Word Problems)
Posted on 2023-12-05 by Ady TZIDON (No Solution Yet, 0 Comments)
Difficulty: 3 of 5Bug on a Cube 3 (in Probability)
Posted on 2023-12-05 by Larry (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Private Zoo and Menagerie (in Numbers) Rating: 5.00
Posted on 2023-12-04 by K Sengupta (Solution Posted, 1 Comments)
Difficulty: 3 of 5Don't Square this Equation (in Just Math)
Posted on 2023-12-04 by Brian Smith (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Decimal Dice (in Probability) Rating: 5.00
Posted on 2023-12-03 by K Sengupta (Solution Posted, 2 Comments)
Difficulty: 3 of 5Some mnemonics (in Numbers)
Posted on 2023-12-03 by Ady TZIDON (Solution Posted, 2 Comments)
Difficulty: 4 of 513 new words (in Word Problems)
Posted on 2023-12-02 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Lighthouse Kerfuffle (in Probability)
Posted on 2023-12-02 by Larry (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Triangle cosine (in Geometry)
Posted on 2023-12-01 by Danish Ahmed Khan (No Solution Yet, 3 Comments)
Difficulty: 3 of 5It's a Bird... No, It's a Plane......It's (in Riddles) Rating: 5.00
Posted on 2023-12-01 by K Sengupta (Solution Posted, 2 Comments)

Recently Posted Solutions:
Difficulty: 3 of 5Some mnemonics (in Numbers)
Submitted By Ady TZIDON. Solution posted on 2023-12-08 07:20:01
Difficulty: 3 of 5Unlucky Horse (in Logic)
Submitted By K Sengupta. Solution posted on 2023-12-06 20:23:11
Difficulty: 3 of 5Bung (in Word Problems)
Submitted By Ady TZIDON. Solution posted on 2023-12-06 04:49:29
Difficulty: 3 of 5It's a Bird... No, It's a Plane......It's (in Riddles)
Submitted By K Sengupta. Solution posted on 2023-12-05 22:23:36
Difficulty: 3 of 5Decimal Dice (in Probability)
Submitted By K Sengupta. Solution posted on 2023-12-05 22:22:14
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