All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info
Home
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> Probability> Shapes> General (2)
> Numbers (1)> Games> Paradoxes> Riddles
> Just Math> Science> Algorithms
When I bought the house the safe in the wall was locked. In a drawer there was a piece of paper. It was written:

3740619285
7532084619
9746085321

3; Crypt key = 2018

What could be the four-digit key?

(No Solution Yet, 0 Comments) Submitted on 2018-02-23 by armando   
Five circles are arranged in the following fashion ( Two rows of 3 circles in square arrangement with one end circle removed from the top row ). Circles are of same diameter and touching adjoining circles as per the diagram. Draw a line passing through A ( Centre of the first circle on the bottom row ) in such a way that it divides the five circles into two equal areas.


                           *                 *
                      *         *       *         *
                    *             *   *             *
                   *               * *               *
                  *                 *                 *
                   *               * *               *
                    *             *   *             *
                      *         *       *         *
         *                 *                 *
    *         *       *         *       *         *
  *             *   *             *   *             *
 *               * *               * *               *
*        A        *                 *                 *
 *               * *               * *               *
  *             *   *             *   *             *
    *         *       *         *       *         *
         *                 *                 *
       
      
(No Solution Yet, 15 Comments) Submitted on 2006-08-26 by Salil   
Difficulty: 3 of 5A sixth power in many ways (in Numbers)
Posted on 2018-02-22 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5A quote and its source (in Word Problems)
Posted on 2018-02-21 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5All the Vowels (in Word Problems)
Posted on 2018-02-20 by Charlie (No Solution Yet, 1 Comments)
Difficulty: 2 of 5A state of a State (in General)
Posted on 2018-02-19 by Ady TZIDON (No Solution Yet, 7 Comments)
Difficulty: 3 of 5 Strictly non-palindromic numbers (in Numbers)
Posted on 2018-02-18 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Let's make a deal (in Numbers) Rating: 5.00
Posted on 2018-02-17 by Ady TZIDON (Solution Posted, 1 Comments)
Difficulty: 4 of 515 letters (in Word Problems)
Posted on 2018-02-16 by Ady TZIDON (Solution Posted, 7 Comments)
Difficulty: 3 of 5Double Secant (in Geometry)
Posted on 2018-02-15 by Jer (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Four fours (in Numbers)
Posted on 2018-02-14 by Ady TZIDON (No Solution Yet, 6 Comments)
Difficulty: 2 of 5Choosing the right number (in Numbers)
Posted on 2018-02-13 by Ady TZIDON (Solution Posted, 6 Comments)
Difficulty: 2 of 5Pick-a-book meeting (in Just Math)
Posted on 2018-02-12 by Ady TZIDON (Solution Posted, 5 Comments)
Difficulty: 3 of 5Using nine positive digits (in Numbers)
Posted on 2018-02-11 by Ady TZIDON (Solution Posted, 3 Comments)
Difficulty: 3 of 5Only six distinct digits (in Numbers)
Posted on 2018-02-10 by Ady TZIDON (Solution Posted, 1 Comments)
Difficulty: 3 of 5En francais seulement ! (in Numbers)
Posted on 2018-02-09 by Ady TZIDON (Solution Posted, 3 Comments)

Recently Posted Solutions:
Difficulty: 3 of 5Let's make a deal (in Numbers)
Submitted By Ady TZIDON. Solution posted on 2018-02-18 09:13:05
Difficulty: 3 of 5A meeting point (in Just Math)
Submitted By Ady TZIDON. Solution posted on 2018-02-18 03:11:49
Difficulty: 4 of 515 letters (in Word Problems)
Submitted By Ady TZIDON. Solution posted on 2018-02-17 00:54:17
Difficulty: 3 of 5Square pairs (in Just Math)
Submitted By Ady TZIDON. Solution posted on 2018-02-17 00:46:01
Difficulty: 3 of 5En francais seulement ! (in Numbers)
Submitted By Ady TZIDON. Solution posted on 2018-02-17 00:41:22
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2018 by Animus Pactum Consulting. All rights reserved. Privacy Information