BRAIN TEASERS

enter your answer and press button OK

Calculate the number 6550

NUMBERMANIA: Calculate the number 6550 using numbers [2, 7, 1, 5, 19, 941] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

#brainteasers #math #numbermania

Register with your Google Account and start collecting points.

Check your ranking on list.

Paying Extra for Good Looks

The person sitting next to me on a flight was a woman. Ever the charmer, I used one of my pick-up lines on her.
I asked, “Does the airline charge you extra for sitting next to good-looking men?”
“Yes,” she replied, “but I wasn’t willing to pay.”

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...

Valdemar Poulsen

Born 23 Nov 1869; died 23 Jul 1942 at age 72.Danish engineer who in 1903 developed the first device for generating continuous radio waves, thus aiding the development of radio broadcasting. His arc transmitter increased the frequency range of Duddell's Singing Arc (1900) from the audio range to radio waves, enabling speech to be transmitted up to a radius of 150 miles. By 1920 the Poulsen Arc transmitter was as powerful as 1000kW with ranges of up to 2,500 miles. An earlier invention was the Telegraphone, for which he filed a patent in Denmark on 1 Dec 1898. This was the first device in history to use magnetic sound recording, although this invention remained commercially impractical due to low sound output until the advent of vacuum tube amplifiers in the 1930s.[Biog. Dict. of the Hist. of Tech. gives date of death 23 Jul 1942. DSB and EB give Jul 1942.]

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.