We can calculate our age in dog years, so why not Leap Day years? Unlike the canine formula — anyone can multiply their age by 7 to get the answer — the Leap Day math applies to people born on Feb. 29 ...

'When is Cheryl's birthday?' math problem may have got the top scholars around the world on their toes, but not the Twitteratis! They rather came out with amusing solutions to the problem. The Math ...

A math problem intended to identify the top 40% of students has become the obsession of the Internet. The seemingly simple question: ‘When is Cheryl’s birthday?’ You can save this article by ...

On the "Leap Year" episode of "Modern Family," Cam celebrates his 10th, er, 40th birthday In the rom-com "Leap Year," Amy Adams travels to Dublin to propose to her boyfriend on Feb. 29 We can ...

For 5–7 year olds: Slime Party – Mix one part fun, one part science, and one part party celebration by experimenting with a hands-on slime-making activity that you can take home. Dinosaur Party – Make ...

Are you smarter than a really smart Singapore high school student? See if you can figure out Cheryl’s birthday, the Singapore logic problem that’s got the Internet twisted into knots. Some are even ...

Your support goes further this holiday season. When you buy an annual membership or give a one-time contribution, we’ll give a membership to someone who can’t afford access. It’s a simple way for you ...

Hal and Carol accept an invitation to a house party. Hal sees that there will be 30 people attending the party and says to Carol, “I bet you $100 that at least two people will have the same birthday ...