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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: Antigrams wanted (in Word Problems) Rating: 5.00
Antigrams, as opposed to aptigrams (not truly accepted as an English word) are anagrams meaning the opposite of the original word.

So "antagonist" becomes not against, and "funeral" real fun, "united" becomes untied ... etc

Got it ?

Go get some!

(No Solution Yet, 2 Comments) Submitted on 2018-09-21 by Ady TZIDON   
Difficulty: 4 of 5 Bonus: Exponential Difficulties (in Just Math) Rating: 3.00
R = N ^ (N ^ (N ^ ...)). What is the maximum N>0 that will yield a finite R?
(No Solution Yet, 6 Comments) Submitted on 2004-10-30 by SilverKnight   
Difficulty: 3 of 5Odd, but true (in Word Problems)
Posted on 2018-09-20 by Ady TZIDON (Solution Posted, 4 Comments)
Difficulty: 3 of 5Cash Box (in Numbers)
Posted on 2018-09-19 by Charlie (No Solution Yet, 0 Comments)
Difficulty: 3 of 5One rope, two flagpoles... (in Logic) Rating: 5.00
Posted on 2018-09-18 by Ady TZIDON (No Solution Yet, 4 Comments)
Difficulty: 2 of 5Name the sequence (in Sequences)
Posted on 2018-09-17 by Ady TZIDON (No Solution Yet, 5 Comments)
Difficulty: 4 of 531 days ago (in Word Problems)
Posted on 2018-09-15 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 2 of 5Always solvable (in Numbers)
Posted on 2018-09-15 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 3 of 5A packing exercise (in Shapes)
Posted on 2018-09-14 by Ady TZIDON (No Solution Yet, 5 Comments)
Difficulty: 2 of 5A formal proof requested (in Just Math) Rating: 3.00
Posted on 2018-09-13 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 2 of 5It is either O or E (in General)
Posted on 2018-09-12 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 2 of 5Lefties and righties 2 (in Logic) Rating: 3.00
Posted on 2018-09-11 by Math Man (No Solution Yet, 2 Comments)
Difficulty: 2 of 5Painless Problem (in Word Problems) Rating: 3.00
Posted on 2018-09-10 by Charlie (Solution Posted, 2 Comments)
Difficulty: 3 of 5Fibo meets Lucas #1 (in Numbers)
Posted on 2018-09-09 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Compare them (in Numbers)
Posted on 2018-09-08 by Ady TZIDON (No Solution Yet, 7 Comments)
Difficulty: 2 of 5A Cone and a Sphere (in Just Math)
Posted on 2018-09-07 by Danish Ahmed Khan (No Solution Yet, 6 Comments)

Recently Posted Solutions:
Difficulty: 3 of 5Increasing sequences (in Just Math)
Submitted By Ady TZIDON. Solution posted on 2018-09-21 09:29:10
Difficulty: 3 of 5Odd, but true (in Word Problems)
Submitted By Ady TZIDON. Solution posted on 2018-09-21 08:21:41
Difficulty: 2 of 5Counting magic squares (in Just Math)
Submitted By Ady TZIDON. Solution posted on 2018-09-21 08:04:54
Difficulty: 2 of 5Painless Problem (in Word Problems)
Submitted By Charlie. Solution posted on 2018-09-16 09:58:17
Difficulty: 3 of 510-Word Square (in Word Problems)
Submitted By Charlie. Solution posted on 2018-09-06 09:56:24
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