An old joke holds that anyone with two mobile phones is either dealing drugs or having an affair – but in fact, there are plenty of legitimate reasons why you’d want to maintain two separate numbers.

WhatsApp now allows users to run two accounts simultaneously on a single device, eliminating the need for multiple phones.

Knowing how to multiply in Microsoft Excel is very important for any professional, student, etc. Begin by launching Microsoft Excel on your Windows computer. To do this, seek out the Excel icon on ...

If your Excel cell or row contains two or more values, you can split that data across multiple cells. For Excel to divide the values, however, the cell must contain a delimiter, a character that ...

If you use Microsoft Office Word 2010 in your small business to create and edit complex documents that contain tables, you might need to number the columns in your tables. Use Word 2010's Numbering ...

Ever wanted to impress everyone by solving complex multiplication problems in your head, without needing a pencil or paper? It's not magic; it's mental math—a superpower you can learn! This article is ...

Roger Cheng (he/him/his) was the executive editor in charge of CNET News, managing everything from daily breaking news to in-depth investigative packages. Prior to this, he was on the ...