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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!
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Difficulty: 3 of 5 Latest: Square Egyptians (in Numbers)
Express 1/2 as the sum of Square Egyptian Numbers with distinct denominators under 362.

I.e. reciprocals of perfect squares.

(No Solution Yet, 0 Comments) Submitted on 2017-06-28 by Jer   
Difficulty: 5 of 5 Bonus: Difficult Sequence (in Sequences) Rating: 3.67
What is the next number in the sequence? 21,45,66,102,115,171,?
(Solution Posted, 19 Comments) Submitted on 2003-10-18 by Freddy Grants   
Difficulty: 3 of 5Words and hints (in General)
Posted on 2017-06-27 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 2 of 5Giveaway ratios (in Numbers)
Posted on 2017-06-26 by Jer (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Lewis Carroll's finding (in Geometry)
Posted on 2017-06-25 by Ady TZIDON (No Solution Yet, 0 Comments)
Difficulty: 3 of 5Combinatory logic (in Logic)
Posted on 2017-06-24 by Math Man (No Solution Yet, 0 Comments)
Difficulty: 3 of 52017 to start with (in Numbers)
Posted on 2017-06-23 by Ady TZIDON (No Solution Yet, 7 Comments)
Difficulty: 3 of 5Letters to digits to letters (in Numbers)
Posted on 2017-06-22 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Odd Egyptians (in Numbers)
Posted on 2017-06-21 by Jer (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Make It Even Again (in Probability)
Posted on 2017-06-20 by Brian Smith (Solution Posted, 4 Comments)
Difficulty: 2 of 5Punchline I (in Word Problems) Rating: 3.00
Posted on 2017-06-19 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 4 of 5Rational number's conversion (in Just Math) Rating: 5.00
Posted on 2017-06-18 by Ady TZIDON (No Solution Yet, 4 Comments)
Difficulty: 3 of 5Love story (in General)
Posted on 2017-06-17 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Pythagoras' corner (in Geometry)
Posted on 2017-06-16 by Jer (No Solution Yet, 3 Comments)
Difficulty: 3 of 5a cube = s.o.d . (in Numbers) Rating: 3.00
Posted on 2017-06-15 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Fifty-Fifty Again? (in Probability) Rating: 3.00
Posted on 2017-06-14 by Brian Smith (Solution Posted, 3 Comments)

Recently Posted Solutions:
Difficulty: 3 of 5Fifty-Fifty Again? (in Probability)
Submitted By Brian Smith. Solution posted on 2017-06-24 09:11:14
Difficulty: 3 of 5Unreliable Witnesses (in Logic)
Submitted By Charlie. Solution posted on 2017-06-22 22:09:29
Difficulty: 3 of 5Problem 23109650321 (in Sequences)
Submitted By John zadeh. Solution posted on 2017-06-21 11:04:19
Difficulty: 3 of 5Make It Even Again (in Probability)
Submitted By Brian Smith. Solution posted on 2017-06-21 10:01:30
Difficulty: 3 of 5More about 1729 (in Numbers)
Submitted By Ady TZIDON. Solution posted on 2017-06-21 05:47:35
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