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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What do you get when you cross a Buddhist and a Druid? Someone who worships the tree that is not there.
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Airplane bomb-drop tests

In 1910, the first trials in the U.S. investigating the use of an airplane to drop bombs were conducted by pilot Glenn H. Curtiss. He dropped lead dummy bombs on 500-ft by 90-ft targets from a height of 50-ft. His aim was successful 10 times out of 14 tries. For visibility, the missiles trailed coloured streamers. The tests were observed by Admiral William Wirt Kimball at Lake Keuka, Hammondsport, New York.*
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