BRAIN TEASERS
Brain Teasers User Profile

VAHID BAGHERI

rank
503
points
1
See full ranking list
short ranking list
501. Ondřej Nentvich 1
502. Mircea Sabau 1
503. VAHID BAGHERI 1
504. Harun Cancar 1
505. sana khan 1
last 3 solved tasks
Which number should replace the question mark in the circle below?

Volcanic lake gases

In 1986, more than 1700 people died when toxic gas erupted from Lake Nyos, a volcanic lake in the West African nation of Cameroon. The gas was carbon dioxide which, being more dense than air, hugged the ground and flowed down valleys. The cloud travelled as far as 15 miles (25 km) from the lake. It was moving fast enough to flatten vegetation, including a few trees. In addition to the human deaths caused by suffocation, 845 people were hospitalized and 3,000 cattle died. Lake Nyos is a few square kilometres in area, and is around 200 m deep. It is situated in the crater formed from the collapse of the pipe feeding a now extinct volcano.

Bean soup

When the waitress in a New York City restaurant brought him the soup du jour, the Englishman was a bit dismayed. "Good heavens," he said, "what is this?" "Why, it's bean soup," she replied. "I don't care what it has been," he sputtered. "What is it now?"

Jokes of the day - Daily updated jokes. New jokes every day.
Follow Brain Teasers on social networks
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.