BRAIN TEASERS

enter your answer and press button OK

Can you find the numbers ABC...

Can you find the numbers ABCD so that the following calculation is proved? (ABCD x 4 = DCBA)

Correct answers: 50

The first user who solved this task is aysan saidie.

#brainteasers #math #riddles

Register with your Google Account and start collecting points.

Check your ranking on list.

A drunk driver is stopped for...

A drunk driver is stopped for heading the wrong way on a one-way street.
The police officer asked the driver, "Didn't you see the arrows?"
The drunk responds, "Arrows? I couldn't even see the Indians."

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...

Percy Gilchrist

Born 27 Dec 1851; died 16 Dec 1935 at age 83.Percy Carlyle Gilchrist was an English metallurgist who is known for the Thomas-Gilchrist process (1876-77) he developedwhile assistant to his cousin, Sidney Gilchrist Thomas. This process manufactured low-phosphorus steel known as Thomas steel, in Bessemer converters and was adopted throughout Europe where iron ore has phosphorus impurities. The key feature of this process is the use of lime (calcined dolomite) to line the converter instead of acidic silica. The lime is a base and it captures acidic phosphorus oxides produced when air is blown through the molten iron. The phosphorous content, which otherwise makes steel brittle, was reduced to about 0.04%. Additionally, the cinder waste product of the steelmaking could be used as valuable artificial fertilizer.«

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.