BRAIN TEASERS

enter your answer and press button OK

Find number abc

If a1cab - bb195 = c292 find number abc. Multiple solutions may exist.

Correct answers: 5

#brainteasers #math

Register with your Google Account and start collecting points.

Check your ranking on list.

Guess Who Knows The State Capitals?

A dumb blonde was bragging about her knowledge of the state capitals of the United States. She proudly announced, "go ahead, ask me any of the capitals, I know all of them."
A red head said, "O.K., what's the capital of Wyoming?" The blonde replied, "Oh, that's easy, 'W'."

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...

Herbert Copeland

Born 21 May 1902; died 15 Oct 1968 at age 66.Herbert Faulkner Copeland was an American biologist who delineated four biological kingdoms, instead of just two for plants and animals. A decade after Darwin's Origin of Species, Ernst Haekel had proposed (1866) adding a kingdom, Protista, for microorganisms, but it wasn't accepted. Copeland further discriminated among the microorganisms in a paper in 1938, splitting them into two kingdoms: Monera and Protista. Copeland identified Monera as organisms without nuclei, and Protista as being largely unicellular, with nuclei. By 1956, he published a book,The Classification of Lower Organisms, still trying “to pursuade the community of biologists” to adopt these four kingdoms. Change came slowly, and continues beyond Copeland's ideas to now five or six. He was the son of botanist Edwin B. Copeland, from whom he learned the principles of classification.«

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.