The answer to this mathematical brain teaser is NOT 40 - can YOU solve it in 30 seconds by remembering the special rule?

A version of this story appeared in CNN Business’ Nightcap newsletter. To get it in your inbox, sign up for free here. The annual World Economic Forum confab known as Davos has always had an optics ...

Amateur mathematicians are using artificial intelligence chatbots to solve long-standing problems, in a move that has taken professionals by surprise. While the problems in question aren’t the most ...

Over the weekend, Neel Somani, who is a software engineer, former quant researcher, and a startup founder, was testing the math skills of OpenAI’s new model when he made an unexpected discovery. After ...

Dolby's next-gen tech seeks to solve your living room's two biggest problems, and Peacock is its first adopter. By Tony Maglio TV has gotten too dark, and by that, I don’t mean tonally — I mean you ...

TULSA, Okla. — Tulsa police detectives are asking for the public's help to solve the final two homicide cases of 2025, as the department achieved a 95% solve rate last year — one of the highest in the ...

Wikipedia has recently come under the microscope. I take some credit for this, as the co-founder of Wikipedia and a vocal critic of the knowledge platform for a long time. In September, I nailed ...

TULSA, Okla. — The Tulsa Police Department is asking for help to solve the final two cases from 2025. TPD says it investigated 47 homicides last year and have solved 45 of them. Right now, they stand ...

Most cookie recipes don’t explain why the texture turns out the way it does. This video breaks it down with two easy chocolate chip cookie recipes, one chewy and one thin and crispy. Simple ...

CANDACE OWENS has a very popular internet show in which she trots out deranged conspiracies about, among other things, the demonic nature of Jews, the murder of conservative activist Charlie Kirk ...

This is read by an automated voice. Please report any issues or inconsistencies here. Candace Owens has a very popular internet show in which she trots out deranged conspiracies about, among other ...

Amid sky-high inflation, water and energy cuts and prospects for a deal with the U. S. dimming, President Masoud Pezeshkian has apparently thrown up his hands. By Farnaz Fassihi and Leily Nikounazar ...