Replace the question mark with a number
[2760] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 282 - The first user who solved this task is Maryam Pouya
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: 282
The first user who solved this task is Maryam Pouya.
#brainteasers #math #riddles
Register with your Google Account and start collecting points.
Check your ranking on list.

Few fresh jokes to start weekend with laugh

If you don't know what to talk about on a first date, try mentioning Global Warming
It's a huge Icebreaker

The female janitor at work keeps asking me if I want to smoke a joint with her.
I always say no because I simply can’t handle High, maintenance woman.

Someone asked me why I always go to the bathroom alone…
I’m just not a pee pal person.

5 out of 6 experts agree that it’s perfectly safe
to play Russian Roulette.

I told my son, "Have you heard that they're shutting down all food resources in schools so that children can't eat?"
"Canteens?" he asked.
"No, it doesn't matter what age," I replied.

I sold my vacuum a few days ago
All it was really doing was there collecting dust.

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...

Dry-cell patent

In 1887, German scientist, Dr. Carl Gassner, was issued a U.S. patent (No. 373,064), the first in the U.S. for a “dry” cell. Gassner had already patented his invention in Germany (No. 37,758) on 8 Apr 1886, and also in Austria, Belgium, England, France and Hungary in the same year. The sealed zinc shell which contained all the chemicals was also the negative electrode. Later, he improved the shelf life of the battery by adding zinc chloride to the electrolyte to reduce corrosion of the zinc shell. Gassner's battery was much like the carbon-zinc, general-purpose batteries sold today. By 1896, the National Carbide Company (later Union Carbide and Eveready) produced the first consumer dry cell battery. Two years later, the company made the first D cell.«[Image: The six-inch, 1.5 volt Columbia Dry Cell marketed by NCC in 1896.]
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.