Replace the question mark with a number
[4000] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 169 - The first user who solved this task is H Tav
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 169
The first user who solved this task is H Tav.
#brainteasers #math #riddles
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Wailing Wall

A journalist assigned to the Jerusalem bureau takes an apartment overlooking the Wailing Wall. Every day when she looks out, she sees an old Jewish man praying vigorously.
So, the journalist goes down and introduces herself to the old man.
She asks, "You come every day to the wall. How long have you done that, and what are you praying for?"
The old man replies, "I have come here to pray every day for 25 years.
In the morning I pray for world peace and then for the brotherhood of man.
I go home, have a cup of tea, and I come back and pray for the eradication of illness and disease from the earth."
The journalist is amazed.
"How does it make you feel to come here every day for 25 years and pray for these things?" she asks.
The old man looks at her sadly.
"Like I'm talking to a wall."
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Benjamin Silliman Jr.

Died 14 Jan 1885 at age 68 (born 4 Dec 1816).American chemist whose report on the potential uses of crude-oil products gave impetus to plans for drilling the first producing oil well, near Titusville, Pa. Silliman separated the crude oil into its component parts, or its fractions, and observed the characteristics of each fraction. He determined by use of a photometer that distilled petroleum burned much brighter than all but the most expensive and least efficient fuels. He also noted its potential use as a lubricant; he found it capable of withstanding extremely high and low temperatures and able to keep its form after long use. Silliman concluded petroleum was “a raw material from which...they may manufacture a very valuable product.”His report marked petroleum as the answer to the illumination fuel crisis.
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