Welcome to MindCipher, a social repository of the world's greatest brain teasers, logic puzzles and mental challenges.
3 6 Are the lines parallel?
Are the horizontal lines in the picture parallel?
illusion Submitted by Valentin
Easy
2.4
4 3 The Middle of Nowhere
What is in the middle of "nowhere"? The answer is indisputable, and not based on some philosophy.
riddle Submitted by Aakash
Easy
2.4
46 72 Charlie and the Chocolate Factory
Charlie once visited chocolate factory to buy some chocolates.Chocolate cost Rs. 3 each and he had only Rs. 45.He was disappointed. He wanted more. But when he reached the factory he was amazed. There ...
Easy
2.4
18 13 Cocktail Party
You are observing a cocktail party that has seven guests. You notice that each guest shakes hands with one another once they meet, but never again. How many handshakes occurred during the cocktail part ...
Easy
2.4
8 3 The Tallest Mountain
A man approaches you with a very enigmatic look on his face. He asks your for a bit of your time and if you could answer a quick question for him. He asks: “Before Mt. Everest was discovered, which w ...
riddle Submitted by Ravi
Easy
2.2
1 1 How many?2
How many people contribute to MindCipher?
Submitted by Gene
Easy
2.0
4 2 There are only 4 circles and none of them touch
Source: reddit.
optical illusion Submitted by Ravi
Easy
2.0
6 10 Binary 5 digits
What is the base 10 equivalent of the highest 5 digit binary number?
Easy
2.0
12 25 Gold or silver?
What weighs more, a pound of silver or a pound of gold?
riddle chemistry Submitted by Jango
Easy
2.0