Brain Teasers

[Game] Brain Teasers

Brain TeasersBrain Teasers : This application is a set of logic, math, geometry, number, matchstick and other types of brain teasers that require logical thinking.

Brain Teasers : All the puzzles and riddles are available in English, Russian, Chinese, Czech and Slovak language.

Sample brain teaser:
There are three switches downstairs. Each corresponds to one of the three light bulbs in the attic. You can turn the switches on and off and leave them in any position.
How would you identify which switch corresponds to which light bulb, if you are only allowed one trip upstairs?

Keep the first bulb switched on for a few minutes. It gets warm, right? So all you have to do then is switch it off and switch another bulb on. Then walk into the room with bulbs, touch them and tell which one was switched on as the first one (the warm one). The others can be easily identified 🙂

This and all other brain teasers and pictures are provided by hzzp:// where you can find other puzzles as well.

Thank you all for your comments and suggestions which helped to add interactivity to the water brain teasers (pour water in several containers to achieve certain amount water in 1 specific container). More interactive games will be added shortly.

If you are interested in helping with translation into Spanish, your own language, or if you have any other suggestion to improve this app then don’t hesitate to send me an email to

Permissions usage explanation:
android.permission.INTERNET – loading online content (unsolved teasers)
android.permission.ACCESS_NETWORK_STATE – loading online content (unsolved teasers)

Brain Teasers user reviews :

Ok Thus is app is fine. Not really good an don’t really bad, its OK I guess

Fun but.. Flawed logic in the reasoning problem “stamps”. There’s no way to know what person B had because the grand master still has 2 stamps in his pocket. Persons A and C could both have had 1 green and 1 red stamp. Because there are still 4 stamps unknown to person B, he would only stand a 1 in 3 chance of guessing correctly. If the grand master had 2 green stamps in his pocket, person B could guess 2 reds on his forehead and be correct.

Hint This is agreat application. But… mind to add a better hint?

Brilliant Good brain tester

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