What do Amazonians do before they begin to fish for electric eels?

• Drive a herd of cows into the river
• Pray
• Put on rubber gloves
• Shout loudly

Amazing facts

Eel blood is extremely toxic, but the toxins are destroyed during cooking. That is why you will never find sushi made from raw eel.

The Amazonian electric eel can generate an electrical shock of more than 500 volts. Before fishing for them, the locals drive a herd of cows into the river, so that the eels release their entire charge on them.

What substance emitted by the onions makes you cry?

• Sulfur
• Hydrogen
• Sodium
• Chlorine

Amazing facts

Onion was included in the ratio of noble knights during medieval crusades. The French exchanged their captives from the Saracens, paying with eight onions per person.

Onion absorbs sulfur from the ground, and creates four chemical compounds out of it. It turns out when you cut an onion, it releases a gas called Propanethiol S-oxide. When mixed with certain enzymes in the onion, it creates a sulfur gas. These gases then get to your eyes and create a mild acid which irritates the eyes.

Which of these countries is a leader in tea production?

• Kenya
• Brazil
• Canada

Amazing facts

In Japanese, one word is used to characterize the concepts of “tea” and “eyelash”. According to legend, the Buddha cut off his eyelashes and buried them in the ground so they would not interfere in the night meditations. A tea plant grew there in the morning.

Ten countries make up more than 90 percent of the world's tea production. These include China, India, Kenya, Sri Lanka, Turkey, Vietnam, Indonesia, Myanmar, Argentina, and Japan.

What is paper made of?

• Wood
• Stone
• Leather
• Hay

Amazing facts

Paper mills are located near ponds and rivers since the paper producing technology requires large amounts of water. next q

The main material used to make paper is pulp, a fibrous material prepared by separating cellulose fibres from wood.

What is wasabi?

• A plant
• An insect
• A city
• A river

Amazing facts

The plant is known as "Japanese horseradish", but it is not actually horseradish, although it is related to it (both genera belong to the same family).

Wasabi is a species of perennial herbaceous plants of the Eutrem genus of the Cabbage family. Seasoning made from its rhizome is called "wasabi" and is used in Japanese cuisine.

What is the name of blood vessels which carry blood away from heart?

• Arteries
• Veins
• Capillaries
• Arterioles

Amazing facts

An average human heart beats 2.5 billion times during a lifetime.

Arteries are called that because in ancient times they were believed to transport air throughout the organism (blood quickly leaves the arteries of the dead). That's why it was believed they were some kind of pipes and were called arteries - 'aer' means 'air' and 'tereo' means 'to contain' in Latin.

What is the Milky Way?

• A galaxy
• A constellation
• A nebula
• A universe

Amazing facts

At the centre of the Milky Way galaxy is a black hole, which is millions of times more massive than the Sun. The center of the Milky Way galaxy is 27,000 light years from Earth.

The Milky Way is the galaxy in which our planet Earth is located. Scientists estimate that there are about 200 billions of stars in the Milky Way galaxy.

What are women’s ballet shoes called?

• Pointe shoes
• Flat shoes
• Gym shoes
• Thong sandals

Amazing facts

Men's pointe shoes are no different from women's, but shoemakers are often asked to insert a double hard insole in them, so that the shoes can withstand the greater weight of men ballet dancers.

Pointe technique is one of the major components of classical ballet, in which the weight of the dancer is supported up on the tips of the feet, appearing poised, graceful, and weightless. Pointe shoes allow the dancer's weight to be evenly distributed throughout the foot.

Which of the following is not an island state?

• Mali
• Indonesia
• Brunei
• Ireland

Amazing facts

Mali is one of the world's leading exporters of gold.

The Republic of Mali is a landlocked country in West Africa. One of Mali's main attractions is its ancient mosque in the city of Djenne, which is built entirety from clay.

What do they call the headquarters of the U.S. Department of Defense?

• The Pentagon
• The FBI
• The CIA
• The Capitol

Amazing facts

There are no elevators in the Pentagon. To conserve steel during the World War II, concrete ramps were used in place of elevators.

During the construction of the Pentagon, the building was not intended for use as the headquarters of the U.S. Defense Department.