Cloth Roll to be Cut

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?




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Queen Elizabeth organised a royal party.

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Second guest comes , the security person said 'six' and guest replied with 'three'.

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In the four images below, can you find the odd one out?

Odd One Out Riddle

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What number comes next in this sequence:
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Amazing Facts

Gamers

In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.