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How many handshakes will there be in total?

At the end of a banquet, 10 people shake hands with each other. How many handshakes will there be in total?

Correct answers: 132

The first user who solved this task is Donya Sayah30.

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Turn-down service in posh hotels

Posh hotels have a turn-down service. I had never heard of this and there was a knock at the door and a woman said, I've come to turn down your bed. To which I said, Well many women have in the past. Why should you be any different?

Michael McIntyre (December 21 1976-)

Picture: Andrew Crowley

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François Hennébique

Born 25 Apr 1842; died 20 Mar 1921 at age 78.French engineer who was an important leader in experimenting with various ways of reinforcing concrete with iron and steel. At the Paris Exposition of 1867, Hennebique saw Joseph Monier's tubs and tanks built of concrete reinforced with wire mesh, and began experimenting with ways to apply this new material to building construction, setting up his own firm (1867). First using reinforced-concrete floor slabs (1879), he progressed to a complete building system, patented 1892, using his invention of a method using hooked connections on reinforcing bars. Hennébique introduced his techniques into Britain when he was commissioned to build a new flour mill in Swansea (completed 1898). This was the first multistorey reinforced concrete building in Britain.

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