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 (1)
> Numbers (1)> Games> Paradoxes> Riddles
> Just Math> Science> Algorithms
Difficulty: 3 of 5 Latest: Must be prime (in Sequences)
What prime members will follow:

3,13,37.......?

Provide your reasoning.

(No Solution Yet, 1 Comments) Submitted on 2020-09-22 by Ady TZIDON   
The triangle with sides 3, 4, and 5, is the smallest integer sided pythagorean triangle. Can you prove that in every such triangle:
  • at least one of its sides must be multiple of 3?
  • at least one of its sides must be multiple of 4?
  • at least one of its sides must be multiple of 5?
(Solution Posted, 7 Comments) Submitted on 2006-07-03 by e.g.   
Difficulty: 2 of 5Last Letters (in Word Problems) Rating: 1.00
Posted on 2020-09-21 by Charlie (No Solution Yet, 1 Comments)
Difficulty: 3 of 5No fractions (in Just Math)
Posted on 2020-09-19 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Two slopes out of three (in Calculus)
Posted on 2020-09-18 by Jer (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Tetrahedral angles (in Shapes)
Posted on 2020-09-17 by Danish Ahmed Khan (No Solution Yet, 0 Comments)
Difficulty: 4 of 5hiDDen maMMals (in Word Problems)
Posted on 2020-09-16 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 3 of 5An Iterated Floor Equation (in Numbers)
Posted on 2020-09-15 by Brian Smith (No Solution Yet, 3 Comments)
Difficulty: 2 of 5Close neighbor (in General)
Posted on 2020-09-14 by Ady TZIDON (No Solution Yet, 4 Comments)
Difficulty: 3 of 5Polynomial path (in Numbers)
Posted on 2020-09-13 by Danish Ahmed Khan (No Solution Yet, 0 Comments)
Difficulty: 4 of 5Square to Cone Conversion (in Shapes)
Posted on 2020-09-12 by Larry (No Solution Yet, 1 Comments)
Difficulty: 4 of 5Halved triangle (in Just Math)
Posted on 2020-09-11 by Danish Ahmed Khan (No Solution Yet, 1 Comments)
Difficulty: 4 of 550 - or more (in Numbers)
Posted on 2020-09-10 by Ady TZIDON (No Solution Yet, 14 Comments)
Difficulty: 3 of 5Repeating squares (in Just Math)
Posted on 2020-09-09 by Math Man (No Solution Yet, 5 Comments)
Difficulty: 4 of 5Sphere parts (in Shapes)
Posted on 2020-09-09 by Danish Ahmed Khan (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Equilateral hexagon (in Geometry)
Posted on 2020-09-08 by Jer (No Solution Yet, 5 Comments)

Recently Posted Solutions:
Difficulty: 3 of 5S.S. Minnow SOS (in Probability)
Submitted By Charlie. Solution posted on 2020-09-09 06:49:20
Difficulty: 3 of 5Two Pill Bottles (in Probability)
Submitted By Charlie. Solution posted on 2020-08-22 09:58:57
Difficulty: 3 of 5What price glory? (in Just Math)
Submitted By Ady TZIDON. Solution posted on 2020-08-13 05:51:54
Difficulty: 2 of 5Numbered Balls in Test Tubes 2 (in Logic)
Submitted By Charlie. Solution posted on 2020-08-12 07:10:46
Difficulty: 3 of 5Gamow's Elevator (in Probability)
Submitted By Charlie. Solution posted on 2020-07-31 15:38:38
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 (2)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2020 by Animus Pactum Consulting. All rights reserved. Privacy Information