Replace the question mark with a number
[3821] Replace the question mark with a number - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 304 - The first user who solved this task is Manguexa Wagle
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Replace the question mark with a number

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 304
The first user who solved this task is Manguexa Wagle.
#brainteasers #math #riddles
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World Creativity and Innovation Day Jokes

April 21st is World Creativity and Innovation Day! Find some jokes about it!

Why did the scientist install a knocker on his laboratory door?
Because he wanted to win the "No-bell" prize!

What do you call an innovation in scissors?
Cutting-edge technology

When the first jackhammer was invented... ...it was a groundbreaking innovation!

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Electric store lighting

In 1878, the first electric lighting in an American store was installed, using eight dynamos to run 28 Brush arc lamps* at John Wanamaker's extensive “Grand Depot” department store, Philadelphia, Pa. In 1875, he had bought the Pennsylvania Railroad depot for $500,000 and converted it into his innovative Grand Depot department store. The lamps had two sets of electrodes working alternately to lengthen the operating period. (patented by the maker, Charles F. Brush, on 2 Sep 1879, U.S. patent No. 219,208). The arc lamps gave a steadier light, but gas-lighting was retained as back-up. By 1888, Wanamaker had 355 arc lamps and 80 incandescent lamps*. He followed electric lights with ventilation fans. The electric displays drew customers.«
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