These are questions that Neil Sloane, a mathematician of Highland Park, New Jersey, loves to ask. Sloane is the founder of the On-Line Encyclopedia of Integer Sequences, a database of 362,765 (and ...

Excel's SEQUENCE function lets you create a list of numbers in a sequence in an instant. It also allows you to define the ...

A viral number sequence puzzle challenges players to find the next number in “2, 6, 12, 20, 30, ?”. Test your analytical skills and see if you can solve it. The key here is to remain focused and keep ...

A brain teaser is like a fun little challenge for your mind. It’s a puzzle or riddle which is designed to make you think creatively and critically, often in ways you’re not used to. At first look, a ...