BRAIN TEASERS

enter your answer and press button OK

Calculate the number 4001

NUMBERMANIA: Calculate the number 4001 using numbers [4, 6, 4, 1, 94, 761] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 16

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Two quick ones...

Did you hear about the psychic amnesiac? He knew in advance what he was going to forget.

----------

Did you hear about the new restaurant that just opened up on the moon? Great food, but no atmosphere.

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...

Ball's Ohio Mower

In 1857, a U.S. patent was issued to Ephraim Ball for his mower design, which became the first widely successful of the two-wheeled flexible or hinged bar mowers. This “Ball's Ohio Mower” greatly influenced the change from single driving-wheel machines to those with double drivers. Ball began inventing with a turn-top stove. Then in 1840 he established a foundry for making ploughs. His invention of the “Ball's Blue Plough” sold well, and in 1851 he joined with others to expand with a larger company with factories in Canton, Ohio. After his “Ohio Mower” he continued inventing farm machinery. The “World Mower and Reaper,” and “Buckeye Machine” (1858) sold extensively. He followed these with the “New American Harvester,” of which 10,000 were produced annually (1865).«

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.