BRAIN TEASERS

enter your answer and press button OK

Which number is missing?

Correct answers: 105

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math #riddles

Register with your Google Account and start collecting points.

Check your ranking on list.

Who Should Have The Toy?

The father of five children had won a toy at a raffle.

He called his kids together to ask which one should have the present.

"Who is the most obedient?" he asked. "Who never talks back to mother? Who does everything she says?"

Five small voices answered in unison. "Okay, dad, you get the toy."

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...

John J. Bittner

Died 14 Dec 1961 at age 57 (born 25 Feb 1904).John J(oseph) Bittner was an American geneticist who isolated a "Bittner milk factor" (1949) from the milk of certain mice, which strongly suggested that at least some viruses can cause cancer. Using carefully bred strains of mice, he compared the role of the mother's genetic disposition to be either prone to cancer or resistant. By having the mice of one disposition act as foster mothers and nurse the babies of the other disposition, he showed that cancer-prone young could grow to be cancer resistant. The opposite was also true: babies originally cancer-resistant became cancer prone. He published this observation (1936), and went on to isolate particles of a virus-like size from the milk of cancer-prone mice that were not present in the milk of cancer-resistant mice.

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.