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Calculate the number 399

NUMBERMANIA: Calculate the number 399 using numbers [4, 2, 7, 4, 22, 670] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 2

#brainteasers #math #numbermania

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Spoon Me

Yesterday the Police arrested me for unsolicited Spooning...
I wasn't charged, they just held me over night.
Which I loved, by the way.

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Zebra crossing

In 1951, the zebra crossing was first introduced in Slough, Berkshire, England to reduce casulaties at pedestrian road crossings. At that time there was only a tenth of the traffic now seen on the roads. The crossings existing then were marked by metal studs in the road. Those on foot could see them clearly but the motorist felt the familiar bumps only in the seconds before he or she collided with a pedestrian. Others things were tried but nothing had the visual impact of the broad white and black stripes across the road at a zebra crossing.[Image: Zebra crossing at Abbey Road, London]

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