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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: Tic Tac Toe III (in Games)
Dorian and Abigail play a game of tic-tac-toe. Dorian plays with crosses (x) and Abigail plays with noughts (o). However, we do not know who amongst Dorian and Abigail started this game.

In the game shown below, six moves have already been made:
                       o | o |
                      ---+---+---
                       o | x |
                      ---+---+---
                       x | x |
Who will win the game?
(No Solution Yet, 0 Comments) Submitted on 2022-06-28 by K Sengupta   
Difficulty: 1 of 5 Bonus: The magic Number (in Numbers) Rating: 3.33
Whats the smallest number ("the magic number") that can satisfy these conditions?

- its positive

- it is not divisible by any number below 20 (excluding 1)

- the average of the digits is an even number between 3 and 9

(Solution Posted, 35 Comments) Submitted on 2004-03-17 by Victor Zapana   
Difficulty: 3 of 5Checking the score (in Cryptography)
Posted on 2022-06-27 by broll (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Three Card Trial (in Logic)
Posted on 2022-06-26 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 2 of 5Apples, Bananas, and Oranges Puzzle (in Liars and Knights) Rating: 4.00
Posted on 2022-06-25 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 4 of 5Egyptian Fraction Expression (in Numbers) Rating: 5.00
Posted on 2022-06-24 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Fifteen Letter Word (in Word Problems) Rating: 5.00
Posted on 2022-06-23 by K Sengupta (Solution Posted, 4 Comments)
Difficulty: 2 of 5See you (in Riddles) Rating: 3.00
Posted on 2022-06-22 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Matchstick Movement Muse (in General) Rating: 5.00
Posted on 2022-06-21 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 2 of 5Why Eat? (in Word Problems) Rating: 5.00
Posted on 2022-06-20 by Larry (Solution Posted, 2 Comments)
Difficulty: 3 of 5Pizza Topping Treat (in Logic) Rating: 4.00
Posted on 2022-06-19 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 3 of 5X and Lucky Seven Settlement (in Numbers) Rating: 5.00
Posted on 2022-06-18 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 2 of 5Same digits II (in Probability) Rating: 4.00
Posted on 2022-06-17 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Cycles of roots as coefficients (in Just Math) Rating: 5.00
Posted on 2022-06-16 by Jer (No Solution Yet, 4 Comments)
Difficulty: 3 of 5Hexagon area ratio (in Geometry) Rating: 4.00
Posted on 2022-06-15 by Jer (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Primorial Penultimate Piece (in Numbers) Rating: 5.00
Posted on 2022-06-14 by Larry (No Solution Yet, 2 Comments)

Recently Posted Solutions:
Difficulty: 3 of 5Fifteen Letter Word (in Word Problems)
Submitted By K Sengupta. Solution posted on 2022-06-25 22:39:49
Difficulty: 2 of 5Why Eat? (in Word Problems)
Submitted By Larry. Solution posted on 2022-06-21 10:42:38
Difficulty: 3 of 5Wise Guy's sons (in Just Math)
Submitted By Ady TZIDON. Solution posted on 2022-06-17 05:18:19
Difficulty: 3 of 5Same digits (in Numbers)
Submitted By Ady TZIDON. Solution posted on 2022-06-15 12:57:29
Difficulty: 3 of 5An Integer Product (in Numbers)
Submitted By Brian Smith. Solution posted on 2022-05-27 10:22:45
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