Can you replace the question mark with a number?
[6515] Can you replace the question mark with a number? - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 43 - The first user who solved this task is Nílton Corrêa de Sousa
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Can you replace the question mark with a number?

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 43
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #riddles
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A man had just settled into hi...

A man had just settled into his seat next to the window on the plane when another man sat down in the aisle seat, and put his black Labrador Retriever in the middle seat between them.
The first man looked very quizzically at the dog and asked why it was allowed on the plane.
The second man explained that he was a DEA agent, and that the dog was a "drug-sniffing dog."
He went on, "His name is Sniffer and he's the best there is.
I'll show you once we get airborne, when I put him to work."
The plane took off, and once it leveled out, the agent said "Watch this." He told Sniffer to "search".
Sniffer jumped down, walked along the aisle, and finally sat very purposefully next to a woman for several seconds.
Sniffer then returned to his seat and put one paw on the agent's arm.
The agent said, "Good boy!", turned to t he man and said, "That woman is in possession of marijuana, so I'm making a note of her seat number and the authorities will apprehend her when we land."
"Say, that's pretty neat," replied the first man.
Once again, the agent sent Sniffer to search the aisles. The Lab sniffed about, sat down beside a man for a few seconds, returned to his seat, and placed two paws on the agent's arm.
The agent said, "That man is carrying cocaine, so again, I'm making a note of his seat number for the police."
"I like it!" said his seat mate.
The agent then told Sniffer to "search" again.
Sniffer walked up and down the aisles for a little while, sat down for a moment, and then came racing back to the agent, jumped into the middle seat and pooped all over the place.
The first man was really grossed out by this behavior and couldn't figure out how or why a well-trained dog would act like that. He asked the agent, "What's going on?"
The agent nervously replied, "He just found a bomb!"
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John Tyndall

Born 2 Aug 1820; died 4 Dec 1893 at age 73. Irish physicist who demonstrated why the sky is blue. He became known to the scientific world in 1848 as the author of a substantial work on Crystals. In 1856 he traveled with Professor Huxley to Switzerland, after which he co-authored On the Structure and Motion of Glaciers. He also published Heat as a Mode of Motion (1863), On Radiation (1865), followed by Sound, then in 1870 he published Light. Included in these works were studies of acoustic properties of the atmosphere and the blue colour of the sky, which he suggested was due to the scattering of light by small particles of water. His initial scientific reputation was based on a study of diamagnetism. He carried out research on radiant heat, studied spontaneous generation and the germ theory of disease, glacier motion, sound, the diffusion of light in the atmosphere and a host of related topics. He showed that ozone was an oxygen cluster rather than a hydrogen compound, and invented the firemans respirator and made other less well-known inventions including better fog-horns. One of his most important inventions, the light pipe, has led to the development of fibre optics. The modern light instrument is known as the gastroscope, which enables internal observations of a patient's stomach without surgery. Tyndall was a very popular lecturer.
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