BRAIN TEASERS

enter your answer and press button OK

Find the area of the blue re...

Find the area of the blue region accurate up to 3 decimal places. (A=?, a=1732)

Correct answers: 31

The first user who solved this task is Erkain Mahajanian.

#brainteasers #math #riddles

Register with your Google Account and start collecting points.

Check your ranking on list.

A man was lying in bed with hi...

A man was lying in bed with his new girlfriend. After having great sex she spent the next hour just rubbing his testicles ... Something she just loved to do.
As he was enjoying it, he turned and asked her, "Why do you love doing that?"
"Because," she replied ... "I really miss mine."

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 Edward Frankland

Born 18 Jan 1825; died 9 Aug 1899 at age 74. English chemist who was one of the first investigators in the field of structural chemistry, invented the chemical bond, and became known as the father of valency. He studied organometallic compounds - hybrid molecules of the familiar organic non-metallic elements (such as carbon, hydrogen, nitrogen, sulphur, phosphorus) with true metals. By 1850, he had prepared small organic molecules containing such metals as zinc. Subsequently, he devised the theory of valence (announced 10 May 1852), that each type of atom has a fixed capacity for combination with other atoms. For his investigations on water purification and for his services to the government as water analyst, Frankland was knighted in 1897.

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.