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Puzzle 5 


Can you draw a continuous line that goes through every number in order, starting with 1, and ending with 6?

You can only move horizontally and vertically, every square must be visited, and the line must not cross itself.

...3../4...1./....../.6.5../2...../......

Note: this puzzle is not interactive, and the numbers cannot be clicked.

Puzzle Copyright © Cihan Altay

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Puzzle 6 


What comes next in this sequence:

dog · goat · tarantula · aardvark · koala · ?
Choose from:

cat, mouse, antelope, elephant, frog

Puzzle Copyright © Kevin Stone

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Puzzle 7 


This multiplication contains the numbers 1 to 9. Can you complete it?
 ...
  3. x
————
....

Puzzle Copyright © Kevin Stone

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Puzzle 8 


    10
   100
 1,000
10,000

Which number comes after 10,000?

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