BRAIN TEASERS

enter your answer and press button OK

What number comes next?

Look at the series (9, 73, 241, 561, 1081, 1849, ?), determine the pattern, and find the value of the next number!

Correct answers: 40

The first user who solved this task is Fazil Hashim.

#brainteasers #math #riddles

Register with your Google Account and start collecting points.

Check your ranking on list.

A plus

A college girl was supposed to write a short story in as few words as possible for her English class and the instructions were that it had to include Religion, Sexuality and Mystery.

She was the only one who received an A+ and this is what she wrote:

"Good God, I'm pregnant, I wonder who did it."

Submitted by Curtis

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...

Mole

In 1971, the mole—the amount of substance (matter)—was adopted as a chemical measurement added to the six base quantities of the SI (International System of scientific units). The decision was made by the Conférence Général des Poids et Mesures (CGPM), the principal executive organization under the Treaty of the Meter (which dates back to the Metric Convention on 20 May 1875). IUPAC's participation was led by M.L. McGlashan. The mole is the amount of substance of a system which contains as many elementary entities as there are carbon atoms in 0.012 kg of carbon 12. The elementary entities must be specified, such as atoms, molecules, ions, electrons, other particles, or specified groups of such particles. The agreed symbol for the unit is mol, and the symbol for amount of substance is n.«

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.