Replace the question mark with a number
[3414] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 336 - The first user who solved this task is Sanja Šabović
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: 336
The first user who solved this task is Sanja Šabović.
#brainteasers #math #riddles
Register with your Google Account and start collecting points.
Check your ranking on list.

The interested doctor

A concerned woman phones a doctor and says, "Doctor, I'm worried about my husband. He thinks he's a dog!"

"I'm coming over right away," the doctor says.

When the doctor arrives, the woman opens the door, and her husband, on all four, starts wagging his bottom and licking the doctor's hand.

"Interesting", the doctor says, startled. "I'll examine him. Make him lie down on the sofa."

"Doctor", the woman says, "I can't! He's not allowed the sofa!"

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...

Black American invention

In 1888, a U.S. patent was issued for the railway signal to the Black American inventor, A.B. Blackburn (No. 376,362). The type of signal was that designed to be operated by the wheels of a train. A lever was depressed as a train wheel travelled over it, to remotely operate an alert through a mechanical linkage upon the passing of the train. It was designed for use upon a single track railway line for trains passing in one direction. To provide a signal for trains passing in the opposite direction, a similar apparatus would be applied on the opposite rail. This patent was an improvement in mechanical design of his earlier patent No. 309,517 on 23 Dec 1884, in which he also described how a gong was activated to provide the alert.«[Image: detail from patent diagram showinf device beside a section of rail.]
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.