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Puzzle 17 

On which side of a cup …

… is it best to have the handle?

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Puzzle 18 

How many cubic feet of earth are removed …

… to make a hole 4 feet wide by 7 feet long by 2 feet deep?

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Puzzle 19 

Can you highlight exactly three numbers that add to 19?

3 x 3 Grid: 8 2 1 6 8 2 1 4 8

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

Puzzle Copyright © Kevin Stone

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Puzzle 20 

If I was in Florida and dropped a heavy ball into a bucket of water which was at a temperature of 45 °F and dropped another identical ball into an identical bucket of water at a temperature of 25 °F …

… which ball would hit the bottom of the bucket first?

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