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Sami Rizk

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402. kalic CZ 3
403. Ivana Brkan Cakić 3
404. Sami Rizk 3
405. Mohamed Nazeek 3
406. Anh Lampy Lê 3
last 3 solved tasks
What number goes into the empty square?
MATH PUZZLE: Can you replace the question mark with a number?
MATH PUZZLE: Can you replace the question mark with a number?

Metre

In 1983, the fifth legal definition of the metre was the the distance that light travels in a vacuum in 1/299,792,458 of a second. length of the meter was redefined at the 17th meeting of the international body Conférence Générale des Poids et Mesures (GCPM) by a method to give greater accuracy. It superceded the fourth legal definition adopted on 14 Oct 1960 based on a spectral line of kryton. Earlier definitions included the distance between marks on the international prototype metre bar made of platinum-iridium alloy (28 Sep 1889). Before that, the metre was decided that it should be one ten-millionth of the distance from the North Pole to the equator (1 Aug 1793), and the earliest concept was the length of a pendulum with a half-period of one second (8 May 1790).«

Two women were having lunch to...

Two women were having lunch together, and discussing the merits of cosmetic surgery. The first woman says, "I need to be honest with you, I'm getting a boob job."
The second woman says, "Oh that's nothing, I'm thinking of having my asshole bleached!"
To which the first replies, "Whoa, I just can't picture your husband as a blonde!"
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