Think Next in Series

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?




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It belongs to you, but other people use it more than you do. What is it?

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When I got four, I have it none.
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The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

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Amazing Facts

Out of the Box

The phrase “thinking outside the box” was popularised from the solution to a topographical puzzle involving 9 dots in a box shape.