BRAIN TEASERS

enter your answer and press button OK

Calculate the number 6402

NUMBERMANIA: Calculate the number 6402 using numbers [2, 6, 9, 8, 24, 997] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 35

The first user who solved this task is Sanja Šabović.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Eugene Mirman: If a Bear Attacks

Does anybody here know what to do if a bear attacks? A lot of people do think youre supposed to play dead, which is not what youre supposed to do. And the best thing about playing dead is -- thats like a rumor that bears spread.

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...

Multiple patentee

In 1791, Samuel Mulliken of Philadelphia, Penn. became the first person to receive more than one U.S. patent. The Secretary of State issued him the first patent on a threshing machine for corn and grain, being the seventh in the records of the office. On the same day he was granted three more letters patent: for breaking and swingling hemp; for cutting and polishing marble; and to raise the nap on cloths. Although his threshing machine was too complicated to work efficiently, no other inventors made significant improvements until 1820. The Patent Office records concerning these patents were destroyed in the 1836 fire. Most were not reconstructed, and the full patents are not now available in the Patent Office records.«

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.