Tricks to Solve Permutation Combination Problems

First off, don't be frustrated. YOU CAN DO IT! Contrary to the message in the image above, it's NOT over. It's just beginning. And when it comes to solving the New York Times crossword puzzle, the old cliche does apply: practice makes perfect. I've read quite a few books and ...more

Dealing with insomnia? Just can't fall asleep at night? Well, there's a few things you can do to escape those restless nights. You can take a hot bath (unless you're a shower person), do some yoga (granted you can do the downward-facing dog), or try a little tapping (if you do ...more

Homemade ice cream is so good and you can make it with just a few ingredients and no special equipment. Most cookbooks and magazine recipes expect you to have an ice cream maker at home, but you can imitate the churning effect of an ice cream maker by shaking or tossing around ...more

Nintendo set the internet ablaze Wednesday night with two big announcements. First, Nintendo revealed that the Switch's paid online service will begin in September (boo), but it was the other report that really got fans excited — Mario Kart is coming to your iPhone. The news ...more

The problem of system freezes is not new to the world of Windows and this has come to light even in the latest Windows 8 release. In the event that your system freezes, you cannot open your desktop files, some controls stop functioning, or you are unable to launch the start sc ...more

The older I get, the more my Friday nights involve watching Netflix at home with a bottle of Maker's Mark and a box of Oreos. Netflix is a big part of my life, and I'm not alone. YouTube and Netflix make up over 50% of all activity on the Internet, so it might be worth your ti ...more

Only three things in life are certain: death, taxes, and getting a dent in your car or truck. Even if you're as careful as possible, you can't always account for runaway shopping carts, wrongly thrown footballs, out-of-nowhere light posts, and other real-life annoyances. Howe ...more

One of the biggest problems in data security is authentication of data and its source. How can Alice be certain that the executable in her inbox is from the venerable Bob, and not from the not-so-venerable Oscar? Clearly Alice wants to know because if this file is actually sen ...more

Smartphones are now indispensable when traveling. Domestic and overseas travel alike require food, navigation, translation, and so much more to make work or vacation successful. Gone are the days of lugging multiple tourist books around with you everywhere you go — you need to ...more

Apple's iOS 15.4 update for iPhone is out after 46 days of beta testing, and it has some exciting features you won't want to miss. Here's everything you need to know about the new software. The iOS 15.4 software has been available to developers since Jan. 27, 2022, and public ...more

Over the past decade, Marvel Studios has been a dominant force at the box office, raking in more than $21 billion dollars. Averaged out over that span of time, the yearly earnings of those movies outweigh the gross domestic product of some countries. And while those films hav ...more

Hi, everyone! Recently, I've been working on a pretty interesting and foolish project I had in mind, and here I'm bringing to all of you my findings. This guide's main aim is to document the process of building an Android kernel, specifically a CyanogenMod kernel and ROM, and ...more

While it's rare, there could be a day when your iPhone 12, 12 mini, 12 Pro, or 12 Pro Max isn't responding, where taps and swipes on the screen do nothing, and the Side button won't let you force a restart. The culprit could be any number of problems, from corrupted files to b ...more

Although the initial reception for the Galaxy S9 has been generally positive, recent reports paint a potentially bleak image — some S9 owners are complaining that their new devices have "dead zones" in their displays, which don't register their touch inputs. Luckily, there are ...more

Like a computer, your brain can store and process large amounts of information. It can remember names, solve math problems, and save tips that you might need at a later time. Unlike a brain, though, computers tend to collect information that might not be important. Not only t ...more

One of Apple's best products is iMessage, which allows for quick, creative, and free messaging between iOS and Mac devices. However, users are reporting that conversation threads in the Messages app are occasionally out of order, which is equal parts confusing and annoying. Lu ...more

We've all seen the blue screen of death at least one time in our lives. I grew up using a Windows PC about the size of a small refrigerator and that damn screen popped up at least once a day. Thankfully, errors like these happen much less often, but now that our smartphones ha ...more

To create an elegant WordPress blog or website from scratch without being noticed that you're a complete beginner, you need that drive and pairs of eyes and ears. It may seem difficult at first but it can truly be fun and exciting. In order for you to have a long lasting blog ...more

To make things a little more fun here on Scrabble World, I've decided to start a weekly feature for word freaks to ponder about it... a challenge. No, I'm not 'challenging' any of your words... I'm challenging your brains. See if you can figure some of these Scrabble puzzles o ...more

There aren't many iPhone apps that let you change their color theme beyond light and dark appearances. They really don't need to either because iOS has a few hidden tricks up its sleeves to help you customize any app's colors either during a specific session or every time you ...more

There is no iPad version of Apple's Calculator app, so you won't find it on your Home Screen, in your App Library, or as a shortcut in the Control Center. But that doesn't mean your iPad doesn't have an official calculator. Before the first iPad in 2010, Apple's development t ...more

A virtual private network is a necessary part of your arsenal if you're insistent on surfing the web privately and securely on your iPhone. The App Store is littered with hundreds of different VPN services that encrypt traffic and mask your IP address, but what they all have i ...more

Cases and stickers are always great, but they aren't the only way to customize an iPhone. The software on your device is full of customization options, from a better-looking home screen and cooler lock screen wallpapers to app icon changes and a system-wide dark mode. There's ...more

Whether it's a short road trip or an 18-hour flight, our phones are now essential travel companions. No longer do we need a GPS unit, maps, cameras, camcorders, or even boarding passes. However, not all phones are created equal in this regard. Some are more suited for travelin ...more

It's the icing on top of your cake (or whipped cream on top of your Android Pie) of despair. You may have not had the easiest time rooting your device, but you feel like you overcame all of the obstacles. Only now to discover that those very apps and mods you were rooting for ...more

This year's big iPhone update, iOS 12, aims to solve many of the issues that arose during iOS 11's controversial, buggy tenure. With that in mind, it may be tempting to jump on board the new software immediately and leave iOS 11 in the dust for good. Here are some reasons why ...more

There are a number of options and hidden menus within Android that provide users more control over their device. With this control, you can better manage how your phone operates. We came up with a list of tips and shortcuts that, when used, will slowly put you on a path to bec ...more

As the third-largest smartphone manufacturer in the world, Apple devices are a constant target for hackers everywhere. While iOS has seen fewer common vulnerabilities and exploits (CVEs) in recent years, iPhones still aren't hack-proof. Fortunately, you can strengthen your sec ...more

If you're in the market for a new smartphone, you'll likely scan spec sheets and read reviews of the top phones, compare display size and technology, RAM amount, and processors. But one factor that is often overlooked is cell reception — and for T-Mobile subscribers, there's o ...more

A group of researchers from Stanford University and Princeton University has put together the largest RGB-D video dataset to date with over 1,500 scans of over 700 different locations across the world, for a total of 2.5 million views. This dataset, called ScanNet, has been s ...more

In the past, to see a pre-constructed state of the house that you would one day live in, you had to be able to read blueprints or hire an artist to sketch it out. Later came the ability to have a 3D rendering of that house on a screen, but you'd still have to work hard to envi ...more