BRAIN TEASERS

enter your answer and press button OK

What can climb mountains, cr...

What can climb mountains, cross streams, handle hundreds of feet each day, yet never moves? What is it?

Correct answers: 35

The first user who solved this task is Fazil Hashim.

#brainteasers #riddles

Register with your Google Account and start collecting points.

Check your ranking on list.

I want to open a pho...

“I want to open a photo processing store in a developing country.”

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...

George Wallace Kidder

Born 9 Dec 1902; died 1996 .American biochemist who demonstrated that a chemical distinction exists between tumorous and normal cells. He was a protozoologist for a number of years in his early career. His study of tetrahymena, a one-cell, pond ciliate with a basic biochemical pattern in most respects resembling that of human cells, led to his discoveries in abnormal growths and, ultimately, in cancerous cells. In spring of 1949, Kidder and his associates discovered that azaguanine, a metabolic analog of guanine, would inhibit the growth of certain forms of cancer and leukemia in mice without injuring the normal cells of the host. (Subsequently, other researchers found to be unsuccessful in cancer treatment of humans, even toxic.)

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.