A 30-year unsolved puzzle at CIA headquarters has captivated cryptanalysts worldwide, with artist Jim Sanborn holding the key.

Goals answer the question: What do you want? and, if you don't know the answer to that, how are you going to get it. So, goal setting is the vital first step to time management, personal productivity and, ultimately, success!

Neuroscientist John Duncan (Cambridge) describes some of the tests associated with Charles Spearman's mysterious "g factor."

Bitcoin and Blockchain. You've heard of them. But what do the words actually mean? Can you define blockchain? We've challenged a computer science expert to do just that, in the time it takes to ride an elevator. Easy.

Ever wondered if you were left brained or right brained? Left brained folks are more logical, analytical, and organized. Right brained people are more artistic, creative, and intuitive. At least..that's what a lot of bad science would...

Francine Berman is Professor of Computer Science at Rensselaer Polytechnic Institute. She serves on a broad spectrum of national and international leadership groups and committees, including the newly-established Research Data Alliance,...

The video explains the proof of 'The Art Gallery Problem'. There are different versions of this problem (such as where guards can be placed) but we will focus on the most well known one where guards are forced to be in corners (and can...

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How did you answer the spool riddle?

In this video, the teacher describes a scenario where John sells a cap for $50 with no profit or loss. However, a buyer comes with $100 and John has to give change. After some complications, the teacher poses the question of how much...

In Episode 12, Charlie and Jordan chat about 3-D bioprinting, plugging up leaky graphene and a new approach to learning for the pre-k crowd called Connect4Learning.

In this video, a teacher reveals the mathematical logic behind three popular number tricks involving doubling, adding, and subtracting digits. Viewers are encouraged to use their logic and math skills to solve these puzzles and share...

What is the SAT? This video is an introduction to the exam. This is part 1 from the series 'Critical Reading & Writing'.

In this session, we will learn about basics of handling exceptions - puzzles 2.
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This clip is from the chapter "Introduction to Exception Handling" of the series "Java Programming for Complete Beginners - Java 16".In this...

In this video, we will learn the basics about Java integer data types - casting, operators, and more.
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This clip is from the chapter "Primitive Data Types and Alternatives" of the series "Java Programming for Complete...

In this video, we will learn about if else statement – puzzles.
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This clip is from the chapter "Conditionals" of the series "Java Programming for Complete Beginners - Java 16".In this section, we will explore conditionals...

In this session, we will learn about Java arrays - puzzles - arrays of objects, primitive data types, toStr.
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This clip is from the chapter "Arrays and ArrayLists" of the series "Java Programming for Complete Beginners -...

This video talks about Java expression – puzzles.
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This clip is from the chapter "Introduction to Java Programming with JShell Using Multiplication Table" of the series "Java Programming for Complete Beginners - Java 16".In...

In this session, we will learn about basics of handling exceptions – puzzles.
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This clip is from the chapter "Introduction to Exception Handling" of the series "Java Programming for Complete Beginners - Java 16".In this...

In this video, we will learn about exercises and tips - getters and generating getters and setters with E.
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This clip is from the chapter "Introduction to Object-Oriented Programming" of the series "Java Programming for...

In this video, we will learn about Java for loop - syntax and puzzles.
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This clip is from the chapter "Loops" of the series "Java Programming for Complete Beginners - Java 16".In this section, we will explain about loops -...

In this video, a mechanical engineer and Rubik's Cube enthusiast, showcases his unique and challenging creations. From a Rubik's Cube that changes color to the largest and most complex cube in the world, Greg's passion for puzzle design...

This video introduces you to AWS CloudFormation challenge.
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This clip is from the chapter "AWS CloudFormation Challenge Puzzles" of the series "AWS Cloud Formation Basics".In this section, we will focus on AWS CloudFormation...

Have an IQ of 160+? Fancy yourself as the next Albert Einstein? Well good for you, but you probably still won't be able to solve these puzzles!