Replace the question mark with a number
[2590] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 899 - The first user who solved this task is Djordje Timotijevic
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: 899
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.

Two elderly ladies had been fr...

Two elderly ladies had been friends for many decades. Over the years they had shared all kinds of activities and adventures. Lately, their activities had been limited to meeting a few times a week to play cards.
One day they were playing cards when one looked at the other and said, "Now don't get mad at me... I know we've been friends for a long time... but I just can't think of your name! I've thought and thought, but I can't remember it. Please tell me what your name is."
Her friend glared at her. For at least three minutes she just stared and glared at her. Finally she said, "How soon do you need to know"?
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...

Edison patents

In 1914, three patents related to a “"Phonograph-Reproducer” were issued to Thomas A. Edison (U.S. Nos. 1,099,346; -8) and also a patent for a “Method of Making Sound-Record Molds” (No.1,099,349). The phonograph reproducers were designed to have an improved mounting for the stylus lever to provide the necessary freedom of movement in tracking the grooves of a sound record. To allow the stylus to better follow the contour of the record groove, its mounting allowed movement in both vertical and transverse directions. The design consisted of various combinationd of a diaphragm, a floating weight, a stylus on a movement-amplifying lever and a sound box body. The method of making sound-record molds dealt with the manufacturing process of the pressing of flat disk records.«
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.