BRAIN TEASERS

enter your answer and press button OK

Calculate the number 2487

NUMBERMANIA: Calculate the number 2487 using numbers [9, 6, 2, 4, 74, 153] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 28

The first user who solved this task is Fazil Hashim.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

A Relaunched Air BnB

Two doctors decided to invest in an Air BnB. Despite all their marketing, they couldn't attract even a single customer.
Eventually, they decided to call their venture "Doctors Without Boarders."

Jokes of the day - Daily updated jokes. New jokes every day.

Follow Brain Teasers on social networks

Brain Teasers

puzzles, riddles, mathematical problems, mastermind, cinemania...

Direct-dial long distance calls

In 1951, direct-dial, coast-to-coast telephone service in North America began as Mayor M. Leslie Denning of Englewood, N.J. called Mayor Frank Osborn in Alameda, Calif. Three digits were added to the number dialled. They were able to begin taking just 18 sec. after the dialling. Previously, coast-to-coast calls were placed by long-distance operators. Since the 1930s some calls could be dialed between cities and towns with relatively small areas. By 1965, 9 out of 10 telephones used the new service, with millions of users connecting through thousands of new generation switching centers, with a numbering plan that could be applied nationwide, and a billing system that could record and process millions of transactions automatically.

This site uses cookies to store information on your computer. Some are essential to help the site properly. Others give us insight into how the site is used and help us to optimize the user experience. See our privacy policy.