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 (1)> Probability (1)> Shapes (1)> General
> Numbers> Games> Paradoxes> Riddles
> Just Math (2)> Science> Algorithms
In the interior of an equilateral triangle ABC a point P is chosen such that PA2 = PB2 + PC2. Find the measure of angle BPC.
(No Solution Yet, 0 Comments) Submitted on 2024-12-08 by Danish Ahmed Khan   
Difficulty: 3 of 5 Bonus: Tough Isosceles (in Geometry) Rating: 5.00
Let A and B be different points on a circle with center O. With only a straightedge and a compass, can you construct a straight line through O meeting the segment AB at C, C strictly between A and B, and meeting the circle at D, so that C is between O and D and the segments AC and AD have the same length?

(Solution Posted, 6 Comments) Submitted on 2005-07-20 by McWorter   
Difficulty: 3 of 5Total Point Probability (in Probability)
Posted on 2024-12-08 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Religious and Political (in Logic)
Posted on 2024-12-07 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5From AP to cubes (in Just Math)
Posted on 2024-12-07 by Danish Ahmed Khan (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Integral chords (in Just Math)
Posted on 2024-12-06 by Danish Ahmed Khan (No Solution Yet, 4 Comments)
Difficulty: 2 of 5Cubic Consecutive Conundrum (in Numbers)
Posted on 2024-12-05 by Danish Ahmed Khan (No Solution Yet, 4 Comments)
Difficulty: 3 of 5Spiral Construction (in Shapes) Rating: 5.00
Posted on 2024-12-05 by K Sengupta (No Solution Yet, 6 Comments)
Difficulty: 3 of 5Tiling Challenge (in Numbers)
Posted on 2024-12-04 by Danish Ahmed Khan (No Solution Yet, 4 Comments)
Difficulty: 3 of 53-4-5 in a square (in Shapes)
Posted on 2024-12-04 by Jer (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Vanishing Socks (in Probability)
Posted on 2024-12-03 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Some Cubes and Quartic Sum To Fifth Power (in Numbers)
Posted on 2024-12-03 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 3 of 5quadrilateral in a hexagon (in Numbers)
Posted on 2024-12-02 by Danish Ahmed Khan (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Toroid Planet (in Shapes) Rating: 5.00
Posted on 2024-12-02 by K Sengupta (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Toss The 2s and 5s (in Probability)
Posted on 2024-12-01 by K Sengupta (No Solution Yet, 4 Comments)
Difficulty: 3 of 5Fifth composition roots (in Just Math)
Posted on 2024-12-01 by Danish Ahmed Khan (No Solution Yet, 1 Comments)

Recently Posted Solutions:
Difficulty: 3 of 5Trigonometric relationship #2 (in Just Math)
Submitted By K Sengupta. Solution posted on 2024-11-27 21:24:40
Difficulty: 3 of 5A 45 degree angle within a triangle (in Geometry)
Submitted By Brian Smith. Solution posted on 2024-11-26 11:24:45
Difficulty: 3 of 5Irrational or Rational (in Just Math)
Submitted By K Sengupta. Solution posted on 2024-11-15 23:24:37
Difficulty: 3 of 5An interesting recurrence (in Numbers)
Submitted By Math Man. Solution posted on 2024-10-29 08:59:26
Difficulty: 3 of 5Catch the catch phrase (in Word Problems)
Submitted By Ady TZIDON. Solution posted on 2024-10-09 20:59:03
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (4)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2024 by Animus Pactum Consulting. All rights reserved. Privacy Information