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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> General
> Numbers> Games> Paradoxes> Riddles
> Just Math (2)> Science> Algorithms
Let ABCDEF be a convex hexagon such that ∠B+∠D+∠F=360 and AB/BC × CD/DE × EF/FA = 1. Prove that BC/CA × AE/EF × FD/DB = 1
(No Solution Yet, 0 Comments) Submitted on 2021-01-20 by Danish Ahmed Khan   
Difficulty: 1 of 5 Bonus: 1,000 (in Tricks) Rating: 1.20
What is the smallest part of 1,000?
(No Solution Yet, 18 Comments) Submitted on 2008-04-28 by Brian Smith   
Difficulty: 3 of 5A tinted train (in Logic)
Posted on 2021-01-19 by Ady TZIDON (No Solution Yet, 0 Comments)
Difficulty: 3 of 5Sweet little sixteen (in Just Math)
Posted on 2021-01-18 by broll (No Solution Yet, 1 Comments)
Difficulty: 2 of 5Colinearity with rectangle vertex (in Geometry)
Posted on 2021-01-17 by Danish Ahmed Khan (No Solution Yet, 0 Comments)
Difficulty: 3 of 53 to 6 letters (in Word Problems)
Posted on 2021-01-16 by Ady TZIDON (No Solution Yet, 7 Comments)
Difficulty: 3 of 5Reverse engineering (in Tricks) Rating: 3.00
Posted on 2021-01-15 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Literary apparel (in Word Problems) Rating: 5.00
Posted on 2021-01-14 by Math Man (No Solution Yet, 2 Comments)
Difficulty: 4 of 5number sum equals all digit sum (in Numbers)
Posted on 2021-01-13 by Danish Ahmed Khan (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Solitaire: Probability Of No First Move (in Probability)
Posted on 2021-01-12 by Larry (No Solution Yet, 3 Comments)
Difficulty: 2 of 5Salt (in Word Problems) Rating: 4.67
Posted on 2021-01-11 by Charlie (Solution Posted, 2 Comments)
Difficulty: 4 of 5Lattices inside square (in Just Math)
Posted on 2021-01-10 by Danish Ahmed Khan (No Solution Yet, 0 Comments)
Difficulty: 3 of 5Go one, two, three (in Numbers) Rating: 3.00
Posted on 2021-01-09 by Danish Ahmed Khan (No Solution Yet, 6 Comments)
Difficulty: 3 of 51 2 4 8 (in General)
Posted on 2021-01-08 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 3 of 5A's, B's, C's and D's 4 (in Logic) Rating: 4.00
Posted on 2021-01-07 by Charlie (Solution Posted, 2 Comments)
Difficulty: 2 of 5Rhombus and equilateral triangles (in Geometry) Rating: 2.00
Posted on 2021-01-06 by Jer (No Solution Yet, 1 Comments)

Recently Posted Solutions:
Difficulty: 2 of 5Salt (in Word Problems)
Submitted By Charlie. Solution posted on 2021-01-14 21:51:53
Difficulty: 3 of 5A's, B's, C's and D's 4 (in Logic)
Submitted By Charlie. Solution posted on 2021-01-14 21:51:03
Difficulty: 4 of 5Not The Weakest Link (in Probability)
Submitted By Charlie. Solution posted on 2020-12-31 07:31:27
Difficulty: 4 of 5Five numbers and Six sums (in Numbers)
Submitted By Brian Smith. Solution posted on 2020-12-23 16:03:58
Difficulty: 2 of 5The King Shows Some Mercy (in Probability)
Submitted By Charlie. Solution posted on 2020-12-22 10:29:37
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