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Brian Thompson

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MATH PUZZLE: Can you replace the question mark with a number?
NUMBERMANIA: Calculate the number 1590 using numbers [4, 4, 5, 5, 22, 341] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Candian patent No.1

In 1869, the Canadian patent No. 1 was issued to W. Hamilton. According to the Canadian Intellectual Property Office, the first Canadian patent, issued before the present number series, "was granted in 1791 by the Governor General in Council to Angus MacDonnel, a Scottish soldier garrisoned at Quebec City, and to Samuel Hopkins, a Vermonter, for processes to make potash and soap from wood ash." Hopkins also was granted the first U.S. patent by George Washington, dated 31 July 1790 for an improvement "in the making Pot ash and Pearl ash by a new Apparatus and Process."

Two old men - Bert and Harry...

Two old men - Bert and Harry - were sitting quietly in a bar.
"When was the last time you made love to a woman?" Bert asked Harry.
"1945," replied Harry.
"My goodness!" exclaimed Bert. "That's a long time ago."
"Not really," said Harry, glancing at his watch. "It's only twenty past eight now."
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