Medium Puzzles 

What number comes next in this sequence:

2  5  9  19  37  ?

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Which letter comes next in this sequence:

Y  P  I  D  ?

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What is the smallest positive integer, which …

… when multiplied by 7 gives a number consisting of only 6's?

Puzzle Copyright © Kevin Stone

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Which is the odd one out:
curtain, door, veil, shutter, screen

Puzzle Copyright © Kevin Stone

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