BRAIN TEASERS

enter your answer and press button OK

Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?

Correct answers: 222

The first user who solved this task is Eugenio G. F. de Kereki.

#brainteasers #math #riddles

Register with your Google Account and start collecting points.

Check your ranking on list.

The closet

My friend keeps telling me I'm in the closet . . . I just say it's Narnia business!

Will Ferrell (July 16 1967-)

I was in love with a beautiful blonde once, dear. She drove me to drink. That's the one thing I'm so indebted to her for.

WC Fields (1880-1946)

Picture: Perseus Book Group

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...

Thomas Robert Cech

Born 8 Dec 1947.American biochemist and molecular biologist who, with Sidney Altman, was awarded the 1989 Nobel Prize for Chemistry for their discoveries concerning RNA (ribonucleic acid). Prior to Cech's research on RNA, most scientists believed that proteins were the only catalysts in living cells. Discoveries by both Cech and Altman overturned the notion that RNA is merely a genetic messenger - an intermediate in the synthesis of proteins from DNA. Cech showed that RNA could have an independent catalytic function, a "ribozyme", aiding a chemical reaction without being consumed or changed. This discovery had major implications for genetic engineering as well as for understanding how life arose.

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.