BRAIN TEASERS
Other (page 78)

Other (page 78)

Other tasks. These are the tasks listed 771 to 780.
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Which should you light first?

You have three stoves: a gas stove, a wood stove, and a coal stove, but only one match. Which should you light first?
Correct answers: 265
The first user who solved this task is Erkain Mahajanian.
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I live where light is but die ...

I live where light is but die if light touches me. What am I?
Correct answers: 95
The first user who solved this task is Sean Snow.
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Guess the Game Name

Look carefully the picture and guess the game name.
Correct answers: 58
The first user who solved this task is Erkain Mahajanian.
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#brainteasers #games

In 3030 years

In exactly 3030 years, there’s a chance things could be really good, and there’s a chance things could be really bad.

I guess it will be 5050.

Jokes of the day - Daily updated jokes. New jokes every day.
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John introduces Mary as the ...

John introduces Mary as the daughter of the only son of my father's wife. How is Mary related to John?
Correct answers: 313
The first user who solved this task is Erkain Mahajanian.
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#brainteasers #riddles
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Look carefully the picture a...

Look carefully the picture and guess the game name.
Correct answers: 30
The first user who solved this task is Erkain Mahajanian.
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#brainteasers #games
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Who is the mysterious person i...

Who is the mysterious person in the picture?
Correct answers: 19
The first user who solved this task is On On Lunarbasil.
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#brainteasers #riddles
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No sooner spoken than broken. ...

No sooner spoken than broken. What is it?
Correct answers: 92
The first user who solved this task is On On Lunarbasil.
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#brainteasers #riddles
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To unravel me You need a key. ...

To unravel me You need a key. No key that was made by locksmith's hand, But a key that only I will understand. What am I?
Correct answers: 57
The first user who solved this task is On On Lunarbasil.
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#brainteasers #riddles
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I'm where yesterday follows to...

I'm where yesterday follows today, and tomorrow's in the middle. What am I?
Correct answers: 65
The first user who solved this task is On On Lunarbasil.
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#brainteasers #riddles
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Who is the mysterious person i...

Who is the mysterious person in the picture?
Correct answers: 28
The first user who solved this task is On On Lunarbasil.
CHECK ANSWER
#brainteasers #riddles
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Xerography

In 1938, xerography was demonstrated by Chester F. Carlson. With his assistant, Otto Kornei, Carlson used a sulphur coating on a zinc plate, vigorously rubbed with a handkerchief to apply an electrostatic charge. A glass slide was prepared using India ink to write "10-22-38 ASTORIA," then laid on the sulphur surface in a darkened room. After illuminating them with a bright incandescent lamp for a few seconds, the slide was removed. When lycopodium powder was sprinkled on the sulphur surface and blown off, there remained a near-perfect image of the writing. Permanent copies were made by transferring the powder images to wax paper and heating the sheets to melt the wax. Xerox is a term coming from "xerography" which means dry writing and is a trademark.
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