BRAIN TEASERS

enter your answer and press button OK

Which number replaces the qu...

Which number replaces the question mark?

Correct answers: 122

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.

My wife and her friend Karen w...

My wife and her friend Karen were talking about their labor-saving devices as they pulled into our driveway. Karen said, “I love my new garage-door opener.”
“I love mine too,” my wife replied, and honked the horn three times. That was the signal for me to come out and open the garage.

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...

Sir Harold Jeffreys

Died 18 Mar 1989 at age 97 (born 22 Apr 1891). English astronomer, geophysicist and mathematician who had diverse scientific interests. In astronomy he proposed models for the structures of the outer planets, and studied the origin of the solar system. He calculated the surface temperatures of gas at less than -100°C, contradicting then accepted views of red-hot temperatures, but Jeffreys was shown to be correct when direct observations were made. In geophysics he researched the circulation of the atmosphere and earthquakes. Analyzing earthquake waves (1926), he became the first to claim that the core of the Earth is molten fluid. Jeffreys also contributed to the general theory of dynamics, aerodynamics, relativity theory and plant ecology.«

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.