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Radmila Gavrilov

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175. Nenad Golubovic 19
176. Digvijay Singh 19
177. Radmila Gavrilov 19
178. Gemini Tay 19
179. Daniela Jakubovski 19
last 3 solved tasks
Look at the series (1, 5, 15, 30, 150, 450, 900, 4500, ?), determine the pattern, and find the value of the next number!
What number should fill in the blank? (8, 43, 11, 41, ?, 39, 17)
What will be the missing number? (9, 19, 40, ?, 170)

Elwood Haynes

Born 14 Oct 1857; died 13 Apr 1925 at age 67.American inventor who built one of the first successful gasoline-powered automobiles. In 1886, when natural gas was found in his hometown of Portland, Indiana, Haynes organized a company to supply it to the town. He devised a method to dehydrate the gas prior to its being pumped through the lines. Also in 1886, he invented a small vapor thermostat used on natural gas. In 1893, he purchased a gasoline engine and designed a "horseless carriage." When Haynes was searching for an alloy that would make a durable spark plug electrode, he invented stellite alloy, which invention is still contributing to society today. Harder than steel and resistant to corrosion, this metal now plays an important part in fabrication of aeronautical materials suitable for exploration of outer space.

A woman can always tell if

A woman can always tell if a man loves her by how much time he’s willing to invest.  Money spent is meaningless, but time spent is priceless.
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