BRAIN TEASERS

enter your answer and press button OK

Calculate the number 2091

NUMBERMANIA: Calculate the number 2091 using numbers [2, 3, 7, 2, 23, 480] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 27

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.

The Old Nephew

My 7 year-old nephew showed me with pride the "telephone" he had just made from a string and two tin cans.
I pulled out my iPhone and said, "That's nice, but... look at the phones that kids your age are making in China!"

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...

William Henry Pickering

Died 16 Jan 1938 at age 79 (born 15 Feb 1858).American astronomer who discovered Phoebe, the ninth moon of Saturn (1899). This was the first planetary satellite with retrograde motion to be detected, i.e., with orbital motion directed in an opposite sense to that of the planets. He set up a number of observing stations for Harvard. He made extensive observations of Mars and claimed, like Lowell, that he saw signs of life on the planet by observing what he took to be oases in 1892. He went further than Lowell however when in 1903 he claimed to observe signs of life on the Moon. By comparing descriptions of the Moon from Giovanni Riccioli's 1651 chart onward, he thought he had detected changes that could have been due to the growth and decay of vegetation.[Image: Voyager Image of Phoebe.][DSB gives date of death 16 Jan 1938. EB gives 17 Jan 1938.]

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.