Replace the question mark with a number
[4000] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 169 - The first user who solved this task is H Tav
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 169
The first user who solved this task is H Tav.
#brainteasers #math #riddles
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April Fool's Day - Here are 5 pranks you can play on people

1. Hide an alarm clock in someone’s bedroom and set it for 3:00 a.m.
2. Remove the shower head and place a Lifesavers candy in it, then put the head back on.
3. Remove the shower head and place a chicken bouillon cube in it, then put the head back on.
4. Rearrange somebody’s drawers or file cabinets in a different order.
5. Tape magnets to the bottom of a cup, put it on the roof of your car and drive around.
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Henri-Gaston Busignies

Born 29 Dec 1905; died 20 Jun 1981 at age 75.French-American electrronics engineer whose invention (1936) of high-frequency direction finders (HF/DF, or "Huff Duff") permitted the U.S. Navy during World War II to detect enemy transmissions and quickly pinpoint the direction from which a radio transmission was coming. Busignies invented the radiocompass (1926) while still a student at Jules Ferry College in Versailles, France. In 1934, he started developing the direction finder based on his earlier radiocompass. Busignies developed the moving target indicator for wartime radar. It scrubbed off the radar screen every echo from stationary objects and left only echoes from moving objects, such as aircraft.«
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