MATH PUZZLE: Can you replace...
[5349] MATH PUZZLE: Can you replace... - MATH PUZZLE: Can you replace the question mark with a number? - #brainteasers #math #riddles - Correct Answers: 60 - The first user who solved this task is Alfa Omega
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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?
Correct answers: 60
The first user who solved this task is Alfa Omega.
#brainteasers #math #riddles
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April Fool's Day - Rig a ketchup bottle...

Rig a ketchup bottle to squirt string instead of ketchup.
Hot dogs are ready, kids. Tee-hee!
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Synthetic quinine

In 1944, the first synthetic quinine was produced by Dr. Robert Burns Woodward (on his birthday) and Dr. William von Eggers Doering at the Converse Memorial Laboratory, Harvard University, Cambridge, Mass. Quinine, an anti-malarial drug, is an organic chemical with the formula C20H24N2O2.
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